This has been my experience every time I try Linux. If I had to guess, tracing down all these little things is just that last mile that is so hard and isn't the fun stuff to do in making an OS, which is why it is always ignored. If Linux ever did it, it would keep me.
- Machine failed to wake from suspend almost 50% of the time (with both wired and BT peripherals) - WiFi speed was SIGNIFICANTLY slower. Easily a fraction of what it was on Mac - USB C display was no-op - Magic trackpad velocity is wild across apps - Window management shortcuts varied across apps (seems Gnome changes a lot, frequently) - Machine did not feel quicker, in fact generally felt slower than Tahoe but granted I did not benchmark anything
I would happily try it again when the project is further along
Apple has also done things such as adding a raw image mode to prevent macOS updates from breaking the boot process for third-party operating systems. Which is only useful for 3rd party operating system development.
Sure, some developer may have added things like raw image mode, but if someone on high says "wait, people are buying macbooks and then not using the app store?" or as soon as someone's promo is tied to a security feature that breaks third-party OSes... well, don't be surprised when it vanishes. Running any OS but macOS is against ToS, and apple has already shown they are actively hostile to user freedom and choice (with the iOS app store debacle, the iMessage beeper mini mess, and so on). If you care about your freedom and ability to use Linux, you should not use anything Apple has any hand in ever.
iOS and the third-party app store court battles makes it clear to me that Apple is actively hostile here.
It would have taken less work for apple to implement the EU "third-party app store" regulation as "anyone can install a 3rd party app store if they jump through enough hoops". They instead require that you live in the EU, as verified through many factors. They break it if you take too long of a vacation, they make using your new right to install a 3rd party app store as difficult as they can.
Apple clearly does not value user freedom nor users abilities to install their own software on their own devices. Apple would rather old iPhones and iPods become useless e-waste bricks than release an EoL update to unlock the bootloader and let you install linux to turn that old iPod touch into a garage remote, or photo-frame, or whatever.
