I wonder when they do the "5 years of security patches" thing phones did. Not sure why people accept that for phones but not computers, maybe Microsoft and Apple will realise that this will work on computers too soon?
For Apple I'm honestly more surprised the MacBook lifecycle isn't shorter but it's also not their main money maker.
https://twitter.com/grahamgilbert/status/1386862102942339073... is a public example, and I'm aware of non-public information regarding this as well.