I am very confused here. I use Vanadium, the default keyboard, and Bitwarden. I also do not have Play Services installed and I do not use the accessibility service. I only use the android autofill framework.
Why is the Bitwarden autofill working for me absolutely fine? It appears just under the box that needs to be filled with a suggestion of what accounts to use, I tap it and it works on 99% websites I use, including this one.
I am using a pixel 8 pro though I believe it also works fine on 6a and 6 pro.