If you are shopping past Ophy AI, the thing worth comparing is where the assistant's pixels live. A browser-based whisper panel is ordinary page content in an ordinary window, so whether the interviewer sees it depends entirely on which surface you chose in the share dialog. A window excluded from capture at operating system level is absent from all of them. In three of the five scenarios below the two behave the same. In the other two they do not, and one of those is the live coding round.
One caveat first. Whether an assistant runs as a tab, an injected sidebar, a picture-in-picture window or a desktop app is a build decision that changes between releases, and Ophy AI's current architecture has not been verified here beyond a check on 31 August 2026. Treat this as a comparison of two architectures, then test which one your tool actually uses.
Why a web page can never opt out of capture
Windows lets a window set a display affinity flag telling the desktop compositor to leave it out of the frames handed to any capture path, available since Windows 10 version 2004. The important word is compositor. The exclusion happens before Zoom, Teams, Meet, OBS or the Snipping Tool receive a frame, so it does not matter which capture API they use and it does not require their cooperation, while the window stays visible on the physical monitor. A web page cannot ask for this. No browser API lets rendered content exempt itself from the operating system's screen capture, and there should not be one, since that would let any site hide from your own recording. A panel drawn by a site or an extension is pixels in a window like any other pixels, and that single fact produces every difference below.
The five scenarios, one at a time
1. You share one Chrome tab
Tab capture streams the rendered content of the chosen tab and nothing else. No browser interface, no other tabs, no other windows, no desktop. A whisper panel living in a second tab, a separate popup or a picture-in-picture window is not in the stream at all. A panel that renders inside the shared tab, which is how an injected sidebar or content script typically works, is in the stream at full resolution, next to the problem statement. For a browser tool the honest answer here is "it depends", on an implementation detail most product pages never spell out.
An excluded desktop window is out of a tab share too, for the duller reason that it was never part of that surface. Separately: the assessment platform inside that tab can log its own blur and visibility events, which is a different system from the video the interviewer watches.
2. You share a single application window
Window capture on Windows hands the meeting app that window's own frames, so a floating panel on top of it generally does not appear. Generally, not always. Some capture paths crop from a full-display duplication instead, and there, anything overlapping does show. Which path a given build uses is not visible from the share dialog, so do not rely on occlusion behaviour you have not tested on that machine.
The sharper problem for a browser panel is when the shared window is the browser. Window sharing includes the browser's own interface, so the tab strip goes out with it. A second tab whose title names an AI assistant is legible at 720p, and so is a docked side panel, which is in frame by construction rather than by accident. An excluded window is out of the picture either way, because it never reaches the capture layer.
3. You share the entire screen for a live coding round
This is the scenario the comparison exists for. Sharing a display sends every pixel on it, with no exemption available to page content, so a browser panel anywhere on that monitor is visible full size beside your editor. Live coding rounds ask for the whole screen fairly often, precisely so window and tab switching is observable.
The standard workaround is a second monitor. That solves the pixels and creates a behavioural problem instead: your gaze leaves the shared display every time you read, which the webcam shows and which becomes obvious over forty five minutes. An excluded overlay sits directly over the editor, roughly where your eyes already are. The difference here is about where you look, not what is in the video.
4. Someone records the session in OBS
OBS on Windows captures displays and windows through the same operating system paths, so an excluded overlay is absent from the recording as well as from a live call, while a browser panel is captured like any other window content. The meaningful change is that it becomes a file rather than a moment: a one second slip nobody noticed live is findable by anyone scrubbing frame by frame. That cuts both ways, so when a round is recorded, treat notifications and tab titles as things read carefully rather than glanced at once.
5. You take a plain screenshot
Print Screen, Win+Shift+S and the Game Bar all go through the same compositor. An excluded window is missing from all three and you get back whatever was behind it. A browser panel appears in every one. This is also the whole test, and it needs no meeting, no second account and no interviewer.
| What you shared | Browser-based whisper panel | Window excluded at OS level |
|---|---|---|
| One Chrome tab | Hidden if it lives in another tab or window, visible if it renders inside the shared tab | Absent |
| One application window | Visible if docked in that window, or if the capture path includes occluding windows; the tab strip goes out too | Absent |
| Entire display, live coding | Visible, unless moved to a second monitor at the cost of looking away | Absent, and can sit over the editor |
| OBS recording | Recorded into a file that can be scrubbed later | Absent |
| Print Screen or Win+Shift+S | In the image | Absent, the background shows through |
The ten second test, before you trust any of this
Put the panel over recognisable text
Position the assistant, whichever kind it is, over a block of text you will recognise instantly in an image.
Press Win+Shift+S and drag across it
Snip a rectangle covering the panel and the text underneath. Move nothing first, then open the image.
Confirm it in a call with yourself
Either the panel is in the picture or the text behind it is; there is no third answer. Then join a meeting from a phone, share the entire display, and check the participant view. If the two disagree, believe the meeting.
OfferPilot AI's overlay takes the excluded-window route on every plan including the free one, so that test costs nothing to run. Two shortcuts matter while testing: hold P for a see-through overlay, and Ctrl+Alt+H to hide or show it when you would rather have nothing on the display at all.
What neither approach does, stated plainly
Capture exclusion hides a window from screen sharing and screen recording. That is the entire claim, and most of what gets inferred beyond it is wrong. It does nothing about a webcam, so anyone watching your face still sees your eyes tracking text you are apparently not typing. It does nothing about a lockdown browser on a proctored assessment, which polices processes and input at a level unrelated to what the compositor renders. It does nothing about eye tracking, a phone filming your screen from the side, or a person in the room. And it does not make outside help permitted where a process forbids it: if a round's rules say no assistance, no window flag changes that, and this is the wrong tool for that round.
Two smaller limits belong here too. The exclusion is per window, so anything you paste out of the overlay into the shared editor is shared like anything else you type. And a capture card or a camera pointed at the glass records photons, not compositor frames.
Where the browser approach wins outright
Platform, and it is not close. A browser panel runs wherever the browser runs: macOS, Linux, ChromeOS, a locked-down work laptop you cannot install software on. OfferPilot AI is a Windows 10 and 11 desktop app with no macOS build, no Linux, no mobile and no browser extension, and the exclusion above is a Windows compositor feature, so it does not port. Interview from a Mac and Ophy AI or another web tool is your answer, whatever a comparison table says. If your rounds are always one shared tab, the difference in this page never arises either.
What the Windows route buys for that narrower footprint is the whole-display coding round, plus things unrelated to capture: interviewer audio transcribed on-device with Whisper so headphones work, roughly a second end to end, and a clock that advances only while audio is actually arriving rather than for the whole session. That side sits on the Interview Copilot page, with per-plan limits on pricing.
Decide it with a share dialog, not a feature list
Open the sharing menu your next round uses and look at the three options: tab, window, entire screen. If your round is the third, the architecture on this page decides your answer. If it is the first, it mostly does not. Either way, test with a screenshot before the call rather than during it. Download for Windows to run that test free, or compare the wider field in the interview copilot roundup.
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