I think the problem with btrfs is that it entered the spotlight way to early. With Wayland there was time to work on a lot of the kinks before everyone started seriously switching.
On btrfs a bunch of people switched blindly and then lost data. This caused many to have a bad impression of btrfs. These days it is significantly better but because there was so much fear there is less attention paid to it and it is less widely used.
@hummus273 Perhaps not because I’m not trying to game, and I can’t detect any changes faster than about 1/50th of a second anyway so fps faster than 50 is more or less moot for me.
Firefox is not a game?