Yesterday my browser was updated, now it says my version is 83.0.4254.27. I noticed that when using video pop up now there is button for options where only option was to turn on/off transparency of that window. That's neat in some cases so I enabled it.
Problem is that today I wanted to disable it... but button is gone. I didn't change anything since then so I'm not sure what caused this.
How do I turn this off again?