Just thought I would let everyone here know an easy solution to playing other games on the Tesla via the browser. Just head to the below link and start playing. So far I have had a decent experience and the Xbox controller connected wirelessly with an 8Bitdo adapter in the glovebox is working perfect. Still need to figure out if it can be set to fullscreen and add sound, but it's still pretty cool as is.
Play Xbox Cloud Gaming (Beta) on Xbox.com. Use your Xbox Game Pass Ultimate membership to play 100s of consoles games on PC and supported mobile devices.