I agree! I've been using KDE as a daily driver for years and I added like 3 new things from this video lol. Also the first tip about fixing Flatpak icons is one of those things that's been vaguely bugging me for ages but not enough to ever actually look it up so that's nice to get fixed too.
Listening to this guy attempt to sound enthusiastic and fun is like driving a screwdriver into the ear canal and pushing, pushing, pushing until it has gone all the way through the brain.