I've been avoiding passkeys but more and more websites are trying to push them, and one website I use now requires them. I've already got a password manager! I don't need to change everything again!
The good thing about this is they thereby also support FIDO2 hard tokens such as Yubikey. The UI is often confusing but you can always tell it to provision the key to your Yubikey rather than the OS enclave.
Your password manager almost certainly already has baked-in passkey support.