You’ve described what happens, but does Bitwarden allow incompatible options? That is, how are users to understand, “Ah, so combination A+B+Z will work, but not combination A+B+C” in terms of toggles / settings / preferences?
If Bitwarden has backend limitations, then the UI / Help article should probably note the limitations at the minimum, if not disable / gray them out.
The use case (i.e., why have it unlock with biometrics if it’s set to never lock) is more geared once…
Require master password “re-prompt” for some items - Feature Requests - Bitwarden Community Forums
…finally ships.