Also important to note is that they are creating the same license problems in other places.
They broke f-droid builds 3 months ago and try to navigate users to their own repo now. Their own repo ofc not applying foss requirements, because the android app is no longer foss as of 3 months ago. Now the f-droid version is slowly going out of date, which creates a nice security risk for no reason other than their greed.
Apparently they also closed-sourced their "convenient" npm Bitwarden module 2 months ago, using some hard to follow reference to a license file. Previously it was marked GPL3.