I have basically the very same issue as the people in this post:
same issue, just for me the system is win10 and not apple/ios - I did the same steps as they were suggested in that post - with the same results, namely that it didn’t resolve the autofill issue - I’m not sure if the problem from those people was solved, but for me it is currently unsolved. I really hope someone will give me a hint, before I have to manuall deinstall and reinstall Brave and lose all my browser data and my bookmarks etc. …