Steam Beta finally enables Proton on Linux fully, making Linux gaming simpler
(www.gamingonlinux.com)
Not for specific hardware but you can sign in to ProtonDB with your steam account and get an overview of your entire steam library. For online games there is areweanticheatyet.com, you will have to check games manually. AMD, Nvidia (9xx and newer) and Intel iGPUs (Skylake and newer) have roughly the same compatibility, performance differs usually favoring Windows on Nvidia.