Bitwarden and DSGVO?

Does Bitwarden comply 100% with the DSGVO in the EU? Will data be transferred outside the EU?

No idea on the first point.

Yes on the second point. However, given that the password vault is heavily encrypted that does not give arise to any great concern.

Some other unencrypted information may well be transferred outside the EU too, this was discussed in another recent thread and I imagine a search engine will discover that discussion.