I'm unfamiliar with bitwarden's licence and skimmed through the issue and my understanding is:
- To use bitwarden API you must use SDK
- To use SDK you are obligated to be the official application, otherwise you violate the licence
- The official application is GPL but since SDK is somehow 'separate program' it is considered OK to couple with a more restrictive license
However, our goal is to make sure that the SDK is used in a way that maintains GPL compatibility.
This is something I completely fail to understand other that mental gymnastics to bend the truth enough to not look like they are not quite right
Edit: is my understanding correct? It looks like this is not the first project that becomes 'source available' after being FOSS in the past, as of lately