It looks like the oldest ARM Mac I have that's convenient to test on is an M2 mini running 14.4.1. The newest is an M5 Air running 27.0.1. And representing current gen budget option is the cheapest Neo available running 26.6.2. That last one is what I'll be doing more testing with tomorrow. There's also an M4 mini available in the test pool. I haven't checked if it runs on that yet but it would be weird if it didn't.