Photo Booth - Convert frame of a video to a still photo?

Please note that any time you do that, the image has to undergo a re-formatting from a video codec to an image format - that means it will not be as sharp and will lose (sometimes considerable) quality. I do not know if the latest iMovie version will allow it - older iterations did: if you have the movie in the timeline, select a frame and then see if it will allow you to export it as a .jpg.

Take a screenshot of it. Command-Shift-5.

a quick search pulled up this magazine-depth article with some possibilities, none of which is Photo booth:

https://havecamerawilltravel.com/photographer/mac-video-still/

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