I have both a Mac and a PC laptop of that vintage and they're both still perfectly suitable for anything short of current gaming or other extreme tasks.
My daily work computer is a 2012 Macbook Air which I dropped from a standing height 4 years ago. It has one bent corner but still runs great.
That is just amazing hardware, but on the other hand, I have a pair of AirPods that just can't autoconnect to my MacBook unless I fiddle with the Bluetooth and speaker icons in the toolbar every time. And AirPods were fucking expensive and both are produced by Apple. What gives? How can they be so incompetent in making a wireless device connect to another wireless device?
That said, my Sennheiser HD1 headphones are absolutely amazing, and I don't miss being physically tethered to my laptop.
runs perfect
just saying...
I did buy a few upgrades since then (16GB RAM, bigger SSD, new battery) but given that I don't do any gaming, there is very little that a new purschase would get me.
So this is definitely not a Mac-specific thing.
The years being 2012, 2014, 2015, and 2017.
The only two working still are the 2012 and the 2017 but I had a warranty swap on the 2017 in early 2018.
That 2012 model is incredible.