M1 is far from the latest, you can pick them up real cheap used now. I would need to do some real research before recommending my Intel mac strategy of buying locked systems that just need a reinstall because most pawn shops don't know what they have, but I'm sure if it works then that would be the best used option possible.

I own an M1 Air running Asahi Linux because I heard very good things about the laptop when I got it and it was a reasonable price. I don't have a Framework to test alongside it so I don't know how it compares with the latest x86 chips. The M1 touchpad is awesome, aesthetics are great with it being light and the material being a lot more durable than my HP Envy laptop that kept getting random dents, doesn't have the hinge misalignment issue, screen is also good. Battery life and performance is great on macOS, not as impressive on Linux (performance is still good aside from missing hardware processing support for certain things, I do end up bottlenecking it when compiling Rust programs), lack of fan noise is nice but also bad for cooling, with Linux it tends to get warm and throttle. Asahi Linux is very impressive but still missing microphone support and doesn't support FDE which is extremely precarious, harder to use alternative distros to Fedora Workstation. Repairability is shit, the keyboard is also shit.

The newer M* models don't have good Asahi Linux support and look overpriced and I don't even know if the Air line still offers 16GB RAM models which is a must have (32GB is better). At this point in time if my Macbook were to randomly die my next laptop probably won't be a Macbook (unless I replace it with another used M1), also I wouldn't recommend it to most people right now because of issues with Asahi Linux being under development like the two I pointed out earlier.