Indeed. I feel so weird reading this discussion section.

My home server is on a 5600G. I turned it on, installed home assistant and jellyfin etc... , and since it has not been off. It's been chugging along completely unattended, no worries.

Yes, it's in a basement where temperature is never above 21C, and it's almost never pushed to 100%, and certainly never for extended periods of time.

But it's the stock cooler, cheap motherboard, cheap RAM and cheap SSD (with expensive NAS grade mechanical hard drives).

However, the vast majority of PCs out there are not hobbyist builds but Dell/Lenovo/HP/etc. [1] with far fewer possible configurations (and much more testing as a byproduct). I am not saying these machines never have issues, but a high failure rate would not be acceptable to their business customers.

[1] Well, most non-servers are probably laptops today, but the same reasoning applies.