How did you install the launcher? Heroic Games Launcher? Lutris? Bottles? Raw Wine?

Same. Heroic just works way more consistently than Lutris for me

If you use Proton, it should use NTSync or FSync automatically with any modern kernel. In my case I use Heroic Launcher for non-steam games and default it to using Proton-GE-latest for all games. Lots of small quality of life and performance tweaks in Proton for games specifically, I highly recommend it.

Have you tried toggling the HDR setting, saving the change, then toggling it back? It’s possible the update overwrote the setting you had without changing the setting in the UI.

I am also really worried they’re going to start making things “touch friendly” now… And we’re going to end up with the MacOS equivalent of Windows 8.

You mean iPadOS?