I've been using Macs for 20 years and never had a major problem.
I need to know your secret. I got handy at repairing PCs because I've had to fix so many of my Macs because I've taken screwdrivers and spudgers to my Macs so often in the past. If any of my machines get to 4 years without needing some kind of repair, I congratulate myself on having terrific hardware luck.
I seem to be having better luck in more recent times though. I've had the best run of computer health I've ever had from 2019 to now.
So much of this is luck of the draw. I still have a 2009 Unibody in great working order, but I did need to replace a bad cable for the wireless card after 4 years of heavy use.