GNOME 46 (currently in release candidate mode and fully releasing later this month on March 20) is adding support for remote graphical logins via rdp:
https://9to5linux.com/gnome-46-to-introduce-headless-remote-logins-via-gnome-display-manager
So you'll be able to do this pretty soon, after upgrading.
It'll be in Fedora 40, scheduled for release around April 16.
https://fedorapeople.org/groups/schedule/f-40/f-40-all-tasks.html
It does work in Proton, but without audio.
There's a bug open @ https://github.com/ValveSoftware/Proton/issues/7612
ProtonDB also lists the lack of audio, without workarounds (so far): https://www.protondb.com/app/2512840?device=any
Hopefully there will be a fix and/or workaround very soon; the game looks fun.