You only do it if you want to. You can put your passkey in keepassxc or 1password or bitwarden or google's password vault or any other cross-platform passkey platform.

It's only a problem if you pick a platform that locks you out, even then there's workarounds. It's not a replacement for logging in every day, it's more a replacement for typing over the 64 character random password from your phone's password manager on the library computer.