If you want to capture a still Image from a Video, you can use the Photos app that comes pre-installed on Windows 11/10. Photos app is an in-built app to open pictures and videos on Windows 11/10.

It seems like this should be a lot easier than it is - and I swear that I used to know how to do this (like 10 years ago) ... but, how do I grab a frame from a movie (.mov) and save it out as a jpeg ...

The Pixel 4 (right) adds a new 'Export frame' button to the video editing interface. Pixel 3 shown on left. Google’s Pixel 4 debuts a new feature which makes it easy to save individual frames of video ...