It's not attestation per se that got me to move away from Apple. More the lock-in in general when it comes to Apple. And the opinionated design (use it as-is, few configuration options).
Every release macOS got more closed and removing features I cared about. At the same time introducing stuff that only works if you're all-in on Apple. Half the new features of every release didn't apply to me because I use so many different systems. I use every OS under the sun. So that didn't work for me. Because all Apple's cloud stuff works on Apple alone (with a handful of exceptions on windows).
The lock-in of passkeys was just one of the things that bothered me. Not really the attestation per se, I'm aware it doesn't currently have it though I wouldn't be surprised if they introduce it if passkeys actually take off.
But like I said, Apple does have hardware control over other features. They do have a secure element which is just like a TPM which blocks you from changing certain files on the system and if you disable system integrity protection they turn off some of the features of the OS, like the ability to use iOS apps on macOS. It's basically DRM. That was the other thing that bothered me. For example, I used to simply boot into recovery and make a 'dd' image of my laptop. I can't do that anymore on an Apple Silicon mac. I used to change my sshd_config to block password auth but since SIP the file got reverted back with every system updated and dumped on the desktop in a passive-agressive move. I just don't want Apple to have more control over my system than me.
This was really what got me to hate macOS, it's just not fit for purpose for me anymore. I have never liked opinionated design but in the beginning of macOS X my opinion was much more aligned with that of its developers.
Every release macOS got more closed and removing features I cared about. At the same time introducing stuff that only works if you're all-in on Apple. Half the new features of every release didn't apply to me because I use so many different systems. I use every OS under the sun. So that didn't work for me. Because all Apple's cloud stuff works on Apple alone (with a handful of exceptions on windows).
The lock-in of passkeys was just one of the things that bothered me. Not really the attestation per se, I'm aware it doesn't currently have it though I wouldn't be surprised if they introduce it if passkeys actually take off.
But like I said, Apple does have hardware control over other features. They do have a secure element which is just like a TPM which blocks you from changing certain files on the system and if you disable system integrity protection they turn off some of the features of the OS, like the ability to use iOS apps on macOS. It's basically DRM. That was the other thing that bothered me. For example, I used to simply boot into recovery and make a 'dd' image of my laptop. I can't do that anymore on an Apple Silicon mac. I used to change my sshd_config to block password auth but since SIP the file got reverted back with every system updated and dumped on the desktop in a passive-agressive move. I just don't want Apple to have more control over my system than me.
This was really what got me to hate macOS, it's just not fit for purpose for me anymore. I have never liked opinionated design but in the beginning of macOS X my opinion was much more aligned with that of its developers.