How are intel arc GPUs on Linux? what are the driver's and gaming performance like.

Mostly fine, but at this point I would wait for the new Battlemage GPUs that should come out soon.

Using Fedora, it's plug and play for most things like games and general usage. I gets a bit harder when you want to use the raw compute of the card to run stable diffusion, blender or encode video, as you'll need additional packages and config.