You can write a PKGBUILD to build those three packages and install them. You can use existing -git AUR packages as a template – check out the PKGBUILDs locally and change the source to point at the merge request branch from the source repos.

For example:

• xorgproto-git
• wayland-protocols-git
• xorg-xwayland-git

Note that you’ll need to install xorgproto and wayland-protocols before building xorg-xwayland.

Disable UI hardware acceleration in the Steam interface settings.