-Normal
-Theater Mode
-Full Screen

Always normal.

I only use full screen when one of my faves really scalp me with a video or performance and I want my HQ, 1080p full screen slayage. So, basically never.

I never use theater mode either

Full screen

Normal.

Normal and I prefer watching them on my phone in my bed as opposed to on my laptop

theater mode

normal
the other ways are tacky tbh

theater mode.

Theater mode

I have an app extension that lets you force youtube to do certain things.

I have it theater mode/4k or 1080p

Normal + Full scream

it's my first time hearing about theater mode lolc

I only ever use the app for viewing, and depending on the video I'll either fullscreen it, or leave it as normal in order to browse the comments while it's playing

normal

Normal. I can't do full because I'm doing other stuff online.

Normal

Theater, Normal is too damn small for me