SteamOS builds off arch pretty rarely so unless they plan on ddosing for 6 months this doesnt impact steamOS at all.

Its probably someone who got banned from the community trying to make a statement.

this won’t be interesting for longtime users

You couldn’t be more wrong. Longtime users love hearing peoples experience switching over. Its been a long time since I was a linux noob but i want to be aware of the problems they may be facing so I can help out or steer them to another way of doing it.

Also sometimes its funny because its just a different variant of the same issues, nvidia drivers, audio, distro randomly breaks in the install phase.

KDE is a awesome desktop. Its really powerful and can be bent to liking with window rules and hotkeys.

Dual booting is fine. Microsoft destroying bootloaders is mostly a meme off a few bugs. Any distro that ships an up to date kernel and drivers is good. Fedora/Ubuntu. Bazzite is kinda weird for gamers because it just makes every problem harder to solve. If you never tinker then its fine but Bazzite feels more restrictive than windows without knowing how it works.