Without a means for transfering from one password management resource to another, passkeys create an increasingly significant friction against migrating one's account and artifically reduces competitive pressure on the vendor.
The phrase we use for that anti-consumer phenomenom is "vendor lock-in"
(If your employer has an effective and practical import and export technique for passkeys, I would be delighted to hear so and apologize for the suggestion otherwise. But as far as I've seen, that's not a thing.)