Disraeli Gears....
I'm running the same laptop as you are and I never once heard the fans in over a year until yesterday when I started playing BG3. I agree, it gets really hot! I'm just running it on the standard 'suggested' settings that the game installed with on the laptop and it does run really smooth, looks great, etc...it's just hot as hell. I don't have a temperature app installed on the laptop so I'm glad to hear that our temps are still within spec. I've looked at the activity monitor and the 16gb of ram does just fine and the cpu barely even breaks a sweat at all.