This Enpass support for passkeys on iOS is an important step, but it is something that we've already had before in iCloud keychain. The main difference is that such passkeys are not stored on Apple's servers (iCloud), but they are under our control (in Enpass). Unfortunately (as I understand) passkeys are NOT yet available on non-iOS systems, but as we can read in declaration on the blog post:
"And we’re excited to be bringing the simplicity and security of synced passkeys to Mac, Windows, Android and Linux very soon as well."
and that's a real good news!
See this feature request: