It would be a very simple functionality that saves a screenshot of the movie playing to a folder like your images on Windows or the one you choose in the settings.
I hope it’s doable in the Plex app !
Isn’t that a native feature of the Android platform?
Yes it is but as always, a button to instantly save a screenshot to your folder is more practical than having to handle your phone to press physical buttons and maybe recrop the image afterwards because your screen’s width is larger than the video one.