I finally manage to make Bitwarden autofill work in Brave without Gplay services.
I had to set brave://flags #enable-autofill-virtual-view-structure on enable without compatibility check.

Then you'll have a new Autofill Options in the General settings that allows you to switch from Brave Autofill to Android Autofill.

    user Ive repeated these steps, but do not see an option to switch to android autofill in the brave settings anywhere

      I tried enabling every single flag in brave that had the word "password" or "autofill" in it and nothing. This has to be graphene related cause bitwarden works in brave on stock android

        freedom_warrior

        Not smart move to change blindly, autofill is also referred to the browser built-in password manager. You need to just switch to android autofill. The latest brave release appears to default android autofill anyway.

            user this was done in a test environment. Regarding switching the autofill source, no such option exists within the brave settings

            • user replied to this.

                user ok, I uninstalled and reinstalled, tried again, and it works. Perfect. Be sure to spread the good word my friend

                  user This works! Thank you so much! Do you know if it's some kind of security risk? I'm not sure what "enabled without compatibility check" means.

                      user This addressed the same issue with 1password and brave on 2 devices, thank you for sharing!

                        7 days later
                        a month later

                        The images that clarified the steps needed to fix this are no longer available. For anyone else struggling, first set the flag as described above. Then in regular Settings menu a choice named "Autofill Options" will be appear that has no icon. Tap on "Autofill Options" and you should see a toggle between "Default" and "Use other providers". Select "Use other providers" and restart Brave.

                          2 months later

                          Can some one reshare the flags required? I'm on a fresh install and need to set this up again.

                            7 days later

                            Same issue, solved via bschnei's instructions, thanks.

                            a month later

                            bschnei

                            Brave no longer has a method to set the autofill options. Apparently this is one thing Brave does differently from other chromium- based browsers.

                            At least on mine, there is no such option in Brave's Settings list (as there is in Vanadium's).

                            As an aside, I'd love to switch to Vanadium for everything (since it's more secure, and Bitwarden works fine with it) but I just can't migrate my nearly-1000 bookmarks manually, that would take forever.