We are using Passbolt and are quite happy with it (only a dozen or so team members). I haven't tested Bitwarden but I would like to compare it to Passbolt. Migrating passwords would probably be impossible, though.
We also used Passbolt in the 6-people IT team of my former employer and it felt nice because it's open source and its development is supported by a state (Luxemburg).
The GPG encryption un-usability is a bit abstracted away by a nice (but not perfect) browser plugin.
The CLI is a bit awkward and incomplete -- so much so that I wrote a fuzzy-search python wrapper with auto-clearing clipboard support etc. around it which served me well enough.
