[hexfish]

Frankly I would worry about that with any third party that holds my data. There are a few Bitwarden exporters on Github that also account for attachments (something the builtin exporter doesn't for some reason).

[aae42]

BW synchronizes all your data on each client... if you logged in before, and your server goes down, you can still log in to a recent client, it just won't be able to update

you could recover from that

[Saris]

No way to export from the client though, so you would have to recover the server unless you previously made backups with the export feature.