Maybe you should have considered the stuff he wanted to do before convincing him to use linux. I could have told you he'd have problems with that stuff. If he said he mainly plays steam games then sure, but not literally the most finicky, cumbersome games to get going in existence. Also out of curiosity because I haven't even thought about Roblox in like 8 years. I thought that was a browser game?
I read the words
hybrid cpu
5 times and still thought this was something about hybrid graphics.