The title is actually confusing to me … the term “browser blacklist” seems to suggest either that your browser is prohibited from opening certain URLs, or that your Android is prohibited from running certain browsers.
I think that what you are actually requesting is for the Bitwarden mobile app to be disabled (at least as an autofill option) while you are using a web browser on your phone. Is this accurate?
Also, in case you were note aware, you should know that the use of in-browser browser extensions on Android is not officially supported.
Finally, if you have not read the following announcement, it may be a good idea to do so: