I cannot figure out how to do fullscreen youtube videos

[pschmehl]

I'm running Mac Sonoma (14.2.1) on an M1 Mac Powerbook and OBS 30.0.2 (64 bit). There is a feature in Youtube that allows you to make a video fullscreen. I want to use that for my videos where I'm commenting on something on Youtube. But, when I make the Youtube video fullscreen, then switch to OBS to setup the view, the fullscreen gets greyed out and a message on the screen (of the browser) says Click to Exit Full Screen)

I can use Cinema mode (of Youtube) just fine. But Fullscreen refuses to work as I want it to.

I've done a bunch of googling on this to no avail. I thought I could use spaces, but OBS is in a different space from Safari, and it doesn't even see Safari. And even if it's in the same space with Safari, it still won't work. As soon as I switch from Safari to OBS, the fullscreen goes grey.

There has to be a way to do this, but I'm at a complete loss. Can anyone help out this old man?

 

[pschmehl]

I've figured out how to work around this problem. After I switch to the scene with the video in it, I make it fullscreen. Then I play it and do my commentary. When I'm done, I switch back to my intro screen.

I'd still like to know why it does this and if there's a way to resolve the issue.