See this about your issue:
You’re not going to be playing it on an Iris Xe anyway. I was getting an average of 7 FPS at spawn with all settings on low and a Game Boy-sized resolution with a 2060, which can run big releases on medium/high settings at stable frame rates.
I don’t know why they’re doing this so early, it’s just going to give them a lot of negative PR. This isn’t even in an alpha state yet. It’s like a proof-of-concept tech demo at best.