I have tried arm computers such as raspberry pi and they are slow. The linux arm projects seem to target just the cheapest price, m1 seems more like bang for buck. I hope linux hardware develops towards that.
the duet, the laptop I actually use is $300 which apple does not have a competing product with, its fair to claim in my head that even now its 3x more than what I am paying.
as an ex macbook pro main, I bought 3 of them over the course of last decade and a half and they have always had older intel brains than any xps or razer stealth I would try to cross shop with. after m1 apples price to performance ratio is at unreal levels
the arm chromebooks like the lenovo duet absolutely murder the iPad pro or even the new iPad Air in terms of actually being a useful OS for devs