Consoles are pretty heterogeneous IRL too, though. You have multiple SKUs (regular and Pro, for example), not to mention most games will also target multiple consoles (PlayStation + Xbox + Switch is a common combo).

So in reality the opportunities to really code against a specific piece of hardware are few and far between...

Heck, then you get into multiple operating modes of the same hardware - the Nintendo Switch has a different perf profile if it's docked vs. not.