Passkey was a great idea. A brilliant solution which could have solved authentication on the web once and for all. If only Apple, Google and Microsoft had not completely ruined it by tying it to their platforms and using it as another moat
"If you really want passkeys, put them in a password manager you control. But don't use a platform controlled passkey store, "
I think this is a good advice in general: if you value your freedom avoid platform controlled services even if they are slightly more convenient.
Btw, the platform authenticator apps are a privacy nightmare. Some are constantly reporting your activities to multiple services. You can verify this easily using an on-device proxy VPN such as NetGuard.
https://fy.blackhats.net.au/blog/2024-04-26-passkeys-a-shatt...