My GPU temps were around 70 to 80 degrees Celsius, my CPU temps were around 50 to 60 degrees Celsius and I was using around 9 gigs of ram. This seems normal to me. Again, the game works fine and my pc only resets after I alt-tab back into DOOM Eternal. After some more testing, it seems that online services are working. I think I'll try to reinstall the game. Hopefully that'll work.