On the other hand, every Apple device I’ve had has been usable for longer (and mostly with no repair) than the non-Apple laptops or phones I’ve had.

For example, my old MacBook Pro was from mid-2015, I only replaced it with a new M2 Pro early last year - it was my primary machine for almost eight years, with just one battery replacement. The current iPhone I’m writing this on is from late 2020 (12 Pro) and still in fine working condition, I can’t see myself having any reason to upgrade this year.