Depending on the specific model, an Intel Mac running Linux is a very sustainable and repairable choice for a computer.
In my experience repairing all kinds of equipment, it doesn’t matter how long it’s officially supported or if the company made a bunch of boards to sell as parts, but instead how many are available on the second hand market!
Especially if it’s a 12”, parts to straighten that thing out are dirt cheap. Last time I did display work on the old late 2012 12”, the owner wanted a whole new upper assembly, top clamshell and all and it was ~$100.