@rey, great news! Glad to hear that worked.
Still strange that you were blocked by this. I’ll likely file this issue anyway in case other users encounter something similar.
This is actually how Shields panel (vs Default Shields in Settings menu) settings work already - so technically, you just did! Read this brief Shields description I wrote a while back for more detail on how Shields function in Brave:
This is actually how Shields panel (vs Default Shields in