When I open Brave a window opens, but within a second or two, a plethora of new Brave windows open and they are all non-responsive. I have to close each one, one at a time. Brave becomes immediately non-responsive so I can’t try to disable all of the extensions, not even in a new private mode window.
I trashed the app and reinstalled the latest Mac version, to no avail.
I’ve also run Onyx for this version of Mac, Big Sur 11.7.9.