That story about the Latitudes doesn’t match my admittedly limited experience. I have a Latitude E6430 that has no problem running Skyrim for extended periods on it’s admittedly weak NVS 5200M.
Back on topic…my experiences with Macs has been decidedly mixed. My best overall experience was the Mac mini I had. Absolutely zero problems, no throttling or repairs required. I’ve had one refurb iMac that had GPU overheating/throttling issues, I think due to a failed heat pipe. I worked around that with an SMC control program that let me ramp up the fans.
But my worst overall experience has been with Mac laptops. In the mid 00’s I had a 2nd gen Macbook Pro, right after the switch to Intel. It had a dedicated ATI GPU, and it kept overheating. It took 4 trips to the Apple store to fix. Thankfully I had purchased Apple Care (aka Instant Poverty™) and to Apple’s credit they eventually replaced the logic board. But I was tired of fighting it, so I just sold it to my boss. Years later he reported that it was still working fine.
I recently bought a used 13" Macbook Pro with a broken screen to use as a desktop. And it also throttled horribly. I had to replace the heatpipe to get it to stop overheating. So I have very little trust in Apple’s laptop engineers. There is way too much emphasis on design over thermal management and performance.
That said I really like Mac OS. Too bad Hackintoshes are a pain to maintain and update.