So I bought the M16 R2 ultra 7 rtx4070

I love it. First time buying a relatively decent PC. I had some questions though. I’ve been running Black Ops 6 and Doom Eternal, and I’ve noticed in the AWCC, the CPU and GPU tend to get really hot. CPU sometimes peaks at 100, but hovers in the 90s, and GPU hits the mid 80s. Games run great, but is this kind of heat normal? I also had an issue downloading EAs app, and trying to run Battlefield 2042, but it crashed my system and I had to do a diagnostic, then restart. It took about 15 tries to get it to boot windows. Any idea why EA/Battlefield crashed the PC to the point it wouldn’t boot windows? Before I got it to run again, the alien head was blinking blue 4 times. I looked it up and it said that might be an issue with RAM, idk what that means though. The PC is only 4 days old from the store. Any advice or help is needed, I haven’t touched any type of computer in 10 years, but I know remedial knowledge. Thanks!