The half-life of Apple kit is so high, they are arguably a lot more sustainable than their repairable PC counterparts.
Apple laptops I have that boot include a 2007 iBook (my folks used it until this Summer and then bank websites would stop working with the Chrome browser they could get working on it), which I'll be putting a BSD or Linux distro on over Christmas, a 2012 Intel MBP that has Linux on it and a couple of 2015-2017 era MBPs that I inherited via one means or another.
I'm typing this on an M4 MacBook Air I picked up cheap during Black Friday sales. I fully expect it to still be functional in 10 years.
I don't think I've ever had a PC laptop last close to that.
Posting from a Thinkpad X61s laptop (Jan 2008) running Trisquel Linux 11.
(I take your point that I would not be able to participate in this discussion using the original operating system that came with this laptop).
The half life is no different. Apple doesnt use higher quality parts. Thats just perception from their premium product marketing.
Every time I see this comparison its always "My $3000 apple laptop is still usable after 5 years while my $700 chromebook is slow after 4 years".
My experience of being one of the only dev with a Linux/Lenovo laptop in a company where everyone else has Macs, is that my Thinkpad from 2018 outlived all the Macs from the same period, most of which had become overheating helicopters.