That's up to the developers, graphics settings should not be synced. Unfortunately some games just dump all settings in there. Steam Cloud docs explicitely men

That's up to the developers, graphics settings should not be synced. Unfortunately some games just dump all settings in there. Steam Cloud docs explicitely mention this: https://partner.steamgames.com/doc/features/cloud#1 https://partner.steamgames.com/doc/features/cloud#1 > Avoid machine specific configurations such as video settings.