From the paper itself:

We had a video-conference and numerous email exchanges with Bitwarden. At the time of writing, they are well advanced in deploying mitigations for our attacks: BW01, BW03, BW11, BW12 were addressed, the minimum KDF iteration count for BW07 is now 5000, and their roadmap includes completely removing CBC-only encryption, enforcing per-item keys and changing the vault format for integrity. On 22.12.25 they shared with us a draft for a signed organisation membership scheme, which would resolve BW08 and BW09. At our request, to maintain anonymity, they have not yet credited us publicly for the disclosure, but plan to do so.

I didn't look at the response to other Password managers, but the gist here is that the article is overblowing the paper by quite a bit and the majority of the "issues" discovered are either already fixed, or active design decisions.