What files do i want to ignore for instance syncing between systems?

[PatoviiNet]

Hey, I'm playing on two systems, my pc and steam deck and I'm using Syncthing to sync the files, and I'm using VSLauncher for multiple instances and mod management, but when the files sync, the mods crash on the other system, so theres files i need to not sync and remain system dependant, but idk what those files are, I know that clientsettings.json is one, but idk which others need to be ignored