I can only speak for myself, but I would never trust opaque, proprietary software to manage my credentials, especially in a networked environment. For me, that’s a total showstopper.
I’ve never had need to use Bitwarden or Vaultwarden as I’ve always been happy with KeePass, but this news would definitely have me choosing an alternative.
Noooo! Ugh, that’s so disheartening to hear but I can’t fault imsodin for his reasons. I sincerely hope that someone steps up to the plate, even if only for the F-Droid releases.
For anyone else interested, the discussion is taking place here:
https://forum.syncthing.net/t/discontinuing-syncthing-android/23002/7