> We have the exact same machines, yet mine somehow basically never has its fan on running Linux and compiling Rust, whereas theirs is often audible while running Windows with a couple of chrome tabs open and outlook.

I think some of this is just poor defaults. Every windows laptop I've had in the last 10 years has defaulted to a thermal management profile that ran the fans aggressively. Usually you have to install some crapware from the manufacturer (it's "Dell Optimizer" on my current machine) that allows you to change the thermal profile to quiet mode, and it's totally fine after that.