Disable Playstation remote touchpad as mouse

https://wiki.archlinux.org/title/Gamepad#Disable_touchpad_acting_as_mouse

Boot manually into a partition from grub

https://superuser.com/questions/1237684/how-to-boot-from-grub-shell

Override proton prefix

TARGET
"/mnt/6TB/SteamLibrary/steamapps/compatdata/3231501569/pfx/drive_c/Program Files (x86)/Battle.net/Battle.net Launcher.exe"

START IN
/mnt/6TB/SteamLibrary/steamapps/compatdata/3231501569/pfx/drive_c/Program Files (x86)/Battle.net

LAUNCH OPTIONS
WINEPREFIX=/mnt/6TB/SteamLibrary/steamapps/compatdata/3231501569/pfx