No environment.d folder under my user config. Pretty sure they will have to add it to the system con
No environment.d folder under my user config. Pretty sure they will have to add it to the system conf as you posted above.

deck@LegionGO:~/.config$ cat /usr/share/gamescope-session-plus/sessions.d/steam|grep -i clientcmd
export CLIENTCMD="steam -gamepadui -steamos3 -steampal -steamdeck"mkdir -p $USER/.config/environment.dnano $USER/.config/environment.d/gamescope-session-plus.confCLIENTCMD="steam -gamepadui -steamos3 -steampal -steamdeck -pipewire"