There's no lock-in in MacOS, which is easily demonstrated on any front you like. Of course, if you actually investigate such claims before making them, it'll put you in the awkward position of having to decide if you'd rather be ignorantly disingenuous our outright dishonest, so it's a tough spot for you.
Also, Asahi is a very polished distro with a lot of original work going into it, arguably one of the best Linux experiences around, so I have no idea what you mean by "no chance of switching".
You are no more and no less locked into MacOS than you are under Windows or under Linux.
I'm not sympathetic to them, but there definitely ARE substantive arguments a FOSS devotee could make about MacOS that make sense, or which are at least grounded in fact. This is not one of them.
The hardware bring up they have done is amazing work, but it's a long way from daily driving. It's not the developers' fault apple uses bizarre webcams etc, but "best Linux experience" is not even close.