I think podman by default does do that, but it’s easy to disable almost all of it, at least.

TB docks are very well supported. Depending on the DE you use, you’ll need to “authorize”/allow the dock for it to get used.

Can confirm that btrfs on nvme with sleep/suspend has been working fine for me on my Framework laptop (haven’t tested hibernate, though).

Are you using Wayland? If so, you need to launch Steam as steam -pipewire, and then select your display. Note that your screensaver will be inhibited while Steam is open with this option.

That being said, I would recommend going for a Sunshine/Moonlight setup if you can rather than using Steam remote play. I get much better performance with Sunshine and Moonlight.

Edit: I just read that steam games work fine for you. In that case, I’m not entirely sure why non-Steam games don’t work.