What were the issues with keepassxc integration? I have been using it and it generally works flawlessly integrating with firefox, the only thing is that you have to sometimes press the reconnect to keepass in the extension if you shut down keepass while Firefox was running.

Keepassxc also provides an ssh agent and works as my secret provider, that also works without problems if it wasn't for gnome keyrings which decides that it will stick around after you log into gnome (which I rarely do). Does BW provide secret integration?