I got a System 76 Oryx Pro. It's not as sexy as the mac but at the time Macbooks could not have 32 GB of ram, which was a major disappointment for me. Pop Os is great, its pretty much for Ubuntu with some tweaks.

Thermals are generally not a issue but sometimes the fans can be a little noisey. And of course due to the very beefy hardware and linux power management not being the most advanced battery life is at most 3 hours in my experience.

But if performance is important I would definitely recommend picking one up.