Getting games off XBox game pass and EA Desktop to work

I play FS2020 off game pass and Star Wars squadrons off the EA desktop app that came with game pass.

Neither game will work with the 8KX. FS2020 has massive stuttering issues (openXR set to SteamVR) and Star Wars Squadrons has this problem with either double vision or like the part of the image towards the nose is not colored properly.

For the most part SteamVR games work. Is there a way to resolve or do I have to buy the games off Steam?