I have not yet watched the video, but it also depends on how easy it is to find the needed settings and how authorative they are. Previously I was on Ubuntu trying to get Nine Sols working with a usable framerate. ProtonDB hat some comments about the needed settings, each comment saying something different, non of them giving positive results. And for using something like gamemode I first had to install it, which is just another step not provided by anything other than comments.

When I installed Bazzite on the same PC (which was torture in itself because I didn't want to give it a full disk alone), everything worked out of the box for all my games. That tells me, that Ubuntu had no focus on making the experience for gaming better. Similar to Fedora 43 removing support for old Nvidia cards, while Bazzite still supports them. (I still debate myself on switching again from fedora because of all the hassle)