Some games will require Wine. Simply download Wine and open Exe. file with it, afterwards add non steam game, force proton.
The complaints on github are for the preview, not stable. I had the bug for preview but no longer with stable. I trust the programmers over some dude on reddit.
For those with the JD, does it use more power?
All we can do is wait for a new update for MTP. otherwise I think the solution is too downgrade the bios. Unfurtantley