@leocg I think it makes sense that everything that is used by the user and is convenient for him. As a user, I say that it would be convenient for me and would make work easier, often to turn on the full screen, I have to go back to the main page of the video, turn off the pop-up window, and then start the full screen. It is not comfortable.
I believe that this function will in no way spoil the functionality of the pop-up window and can be implemented for the sake of those users who really need it.
K