I used haruna and it works. The instructions on the FreeTube GitHub could be clearer though. Depending on if you're using FreeTube and or the external player as flatpak there are different ways to get it working.
From briefly looking over the toot, I think the German version is called openDesk (bad choice as there seems to be some interior design software with the same name) there is a community version you can self host in a docker container. They apparently also have distro packages for Debian and Ubuntu but they seem to have stopped development on those.
Have you checked protondb to see if there are any fixes suggested there?
If I remember correctly flatpak steam causes a lot of problems. You could try flatseal to see which permissions steam has, maybe sth is interfering?
Have you changed the steam setting that is should use proton for all games? You can find it under the compatibility in your settings, just choose proton experimental, that should work for most games.
I don't have a definitive answer but I'd figure the low res might still be "easier" there is, for example a style called impressionism where they basically painted "pixels".
Simply put "unsubscribe" in a folder rule for your mail client and delete them automatically. Obviously if you have newsletter subscriptions you actually want to receive Marie sure those are filtered and sorted away before the "unsubscribe"tile kicks in
There was a freetube workaround that worked for me:
Set API to invidious
Disable fallback
Disable the invidious override thing in the player settings section
Set the invidious instance to one close to your location (type https:// in the field to get suggestions)
Not much info on how to achieve it, but some info why it might be bad can be found on the ublue discourse site. (Search for KDE gnome)
Basically it seems to mess up configs to have both DEs installed or rebasing from one to the other.
I used haruna and it works. The instructions on the FreeTube GitHub could be clearer though. Depending on if you're using FreeTube and or the external player as flatpak there are different ways to get it working.