1. The M1 Macs are amazing. If you are the kind of person who needs a GUI and involves lot of app related work go for it. (this person seems more interested in stuff like that so linux ain’t gonna cut it for him). The cons? A super restrictive platform (even more than it was under intel) and a very pricey hardware affair where getting anything fixed is hard. My speaker was faulty after my 2016 mbp already had a broken display thanks to apple. I hope new MBPs do a much better job at hardware after the keyboards that seem to be fixed now.
2. Linux can do everything almost that Windows / macOS can. But not necessarily better. In GUI it’s still a mess but wayland actually fixed tearing so I’m not sure what is the deal here. Overall I think you need to spend time with linux to become comfortable vs expecting a distro to solve all your requirements. If you really want the fine control go with Arch it’s usually good for cutting edge hardware.