Palworld fails to launch on Intel Arc unless "force_vk_vendor" is set to "-1".
Palworld (https://store.steampowered.com/app/1623730/Palworld/) does not launch on my Intel Arc A380 system unless the "force_vk_vendor" env var is set to "-1". From a quick look over ProtonDB reports of the game, it appears that other Intel Arc users are unable to launch the game too.
I couldn't find any information about whether or not the game currently has XeSS support, apart from a Discord thread that suggests it does not.