Some folks like to have a computing environment free of proprietary influences and extremely strong vendor lock-in. I cannot claim to posses any apple devices.
Sure, you can use the App Store and use all the stuff that integrates with iPhone, iCloud, etc
But you can also just treat it as Linux for Laptops (that actually works), and roll with all the standard open source tools.
While they don't _prevent_ Asahi from doing what they're doing, they certainly don't go out of their way to make it easy for them.
But if you don't like it, switch. I don't see vendor lock-in.
Notes sync, Copy/Paste would be hard to give up and took zero effort