It greatly depends on the laptop, even within the same manufacturer. I have lots of old Apple gear that still works but is just too old to get security updates:

It greatly depends on the laptop, even within the same manufacturer. I have lots of old Apple gear that still works but is just too old to get security updates: - 2012 13" MBP, works great with an SSD upgrade, and the hinge is still solid, which was not the case with my 2009 15" MBP where the screen literally ripped off. - 2013 15" retina MBP. Great laptop, still plenty fast to use today, but runs a little hot and the battery life was never amazing. - 2015 12" retina Macbook. Survived two glasses of water spilled on it, but the speakers and bluetooth died. It was miserably slow to use anyway. My daily driver is now a 15" M3 Macbook, which has been amazing in nearly every way. Only minor complaints is that the ram maxes out at 24GB and I wish I had 1 more USB port on the other side.