I've gone several generations of using MacBooks until they were hopelessly old .... i.e. not even security updates from Apple. The one I'm using now is 11 years old and yeah the battery needs replacing and the paint has worn off many of the key tops, but it still works fine (*). It's about time to replace it but I'm in no hurry. I have a new battery from iFixIt on my shelf waiting for me to take the time to do the surgery on it.
Previous laptop used about as long. Note this is my personal-use laptop. I have the latest from Apple for work and building software 
Worst? An IBM Thinkpad (many many years ago). Its force-stick in the middle of the keyboard wore a hole in my thumb.
(*) Ok, Turbo Tax 2023 refused to run on my older, OS. But that's seriously the biggest problem I've had with it.
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