FIDO Cross-Device Authentication with Third-party Passkeys Manager?

Is it possible to set third-party password manager as the handler for FIDO Cross-Device Authentication (CDA, Passkeys Hybrid Transport) on iOS and Android? On Android, it seems that it always use Google Password Manager to handle FIDO QR codes.

This is important because I’m sure I’ll encounter situations where I wouldn’t be able to use Bitwarden directly on the target device in the future. Making CDA the only way to login passwordless-ly.

As a side-note, I tried CDA with a hardware security key. Sadly it doesn’t work.