Btw, I've always dismissed this as a "early in development" thing, but #Amethyst is pretty mature now and always getting bug fixes.
This one has been here for as long as I remember: whenever I watch a video full screen:
1. There's always a misalignment so you see the previous page in the background. (See image)
2. It launches a second video player, so it typically starts the video again, and when you close it, the same video on the previous page continues from where it was paused from.
I reckon number 2 is already known, but hard to address, but just in case, for number 1, I am running stock android on a pixel 6.


