I never understood why Mozilla doesn't offer paid privacy respecting services (outside basic sync that already exists) like email, cross platform password storage etc.
Also, like it or not, I think Passkeys/WebAuthn is going to be pushed more and more, so without a user focused way to own them, that's another reason not to try and use a browser (any of them!) as a password store
Gee, fucking wow, it's almost as if it's plain a day why they've sucked as a corp, non profit, and culturally for a decade at this point.