Does what it says on the tin, but honestly I find the "uncorrected" video more comfortable to watch.
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you can switch to another tab, use a miniplayer, in some apps u can focus one person's screen and if you choose someone who has a static avatar up you'll barely see other people's faces.
The nuclear option is to install PowerToys [0] and put something always on top (im a fan of the hotkey winkey+space to toggle always-on-top on and off) in the exact position of the other video feeds. notepad or something.