[Warning] All data completely deleted from account

[cksapp (Kent)]

@grb

I should also point out that if your view of what happened to your Bitwarden vault is correct (i.e., some obscure flaw in Bitwarden’s code caused your data to be erased), then you are still not completely safe as long as you continue to use any of the Bitwarden client apps to interact with your self-hosted server. If the hypothesized bug was not in the server software, but in one of the client apps, then it could rear its ugly head again and erase your vault. My advice to you would be to make frequent backups.

I would like to reiterate a point from a comment on another post as well as it would be relevant.
Not only would there be this possible concern, if we are considering all possibilities.
But also the very real possibility of incompatibly with using the Bitwarden clients, and an unofficial 3rd party backend server.

And described there have been several cases shown where incompatibilities between the two have caused issues for users.
For the best compatibility, while still wanting to be in control of your own data self-hosted the official Bitwarden service would most likely be the best bet.
As you can still retain control of your information and Bitwarden allows you to self-host your own service.

Though again scores the importance of individual backups separate from Bitwarden’s service. I believe this has been discussed to length in this topic, and regardless of the service are critical.