Credentials Manager on the Android side?

Is it possible to get a credentials manager base implementation on the Android Appsupport?

Our Microsoft 365 Accounts are set to passkey only login and without that credentials manager I can not store a passkey on the device, or link a yubikey passkey to the system and thus not login on the phone.

I tried OPA and Authnkey from Fdroid, but booth need a credentials manager base.