With the stable release of the FIDO PassKey specification across Android, iOS, Windows, and macOS, the future seems to be moving away from passwords - finally!
For Enpass, supporting these seems like the logical next step. It's a great cross-platform tool for syncing an encrypted vault, and syncing a PassKey is really nothing more than syncing a private key. It's more data, so it might require architectural work (treating passkeys like attachments under the hood, assigned to their own files, for better incremental sync), but I think it's achievable.
An MVP implementation might start with only QR code-based auth, and implement OS/browser integrations later as the platforms begin to provide APIs for it.
1Password is rolling out support for them this year, and I think it would put Enpass would be at a long term competitive disadvantage if support wasn't planned.
Enpass remains my favorite tool thanks to the "dumb" local encryption and sync options it provides, and I hope to continue to be able to use it as we transition slowly off of passwords for authentication.
All the best, Enpass team!