wem proton command will download and install GE Proton releases:
$ wem proton 6.5-GE-2
You can install GE Proton for usage with Steam like this:
$ wem proton 6.5-GE-2 --proton-dir $HOME/.steam/root/compatibilitytools.d
To see available versions:
$ wem list --proton
To see installed versions:
$ wem list --proton --installed
To use an installed GE Proton version, run
wem list --proton --installed to see the path to your installed versions, then set your
WineExe to the desired path.
$ wem cfg tes3 --wine-exe $HOME/.local/share/wem/proton/Proton-6.5-GE-2/dist/bin/wine --no-render --save
$ wem run tes3 --wine-exe $HOME/.local/share/wem/proton/Proton-6.5-GE-2/dist/bin/wine
Fish completion can be used to autocomplete any installed GE Proton versions, but completion files need to be regenerated after installing your first GE Proton.
NOTE: Listing uses the Github API, which is ratelimited at 60 requests per hour. When this is exceeded, WEM won't be able to validate versions.