As a Linux user I feel you. The Mac Desktop is vastly inferior to the Linux world (for power users) but the hardware is so, so good. For me it is about having a completely silent setup. It is so, so hard to go back to noisy fans. I really hope Asahi Linux keep going so I can have the best of both worlds.
Saying that the macOS desktop is vastly inferior to Linux desktops is absolutely nuts. I've tried to get my relatives on Linux desktops so many times, just for it to go completely wrong a couple of weeks after and having to reinstall Windows. It's just not made for average (or below-average) users, so I don't see how it can be VASTLY inferior to something as easy and polished as macOS.
If they're like 95% of computer users, they use them to check their email, their FB/IG/etc and browse the web. A Chromebook would suit their needs, but in my experience, so would a modern Linux installation + a browser.
The biggest friction in my experience is UI differences, but that is solved by just mimicking Windows/macOS UI in KDE. Put buttons and components where they expect to find them and it seems to just work, in my experience.