Yes, but how do you get out of the country to live somewhere else without getting your first UK passport while you are still in the UK?
I’m not sure, but I think the requirements when you are renewing an expired passport are somewhat easier to meet.
My wife and I are dual citizens born in Canada but with fathers that were born in the UK. We decided to get our passports pre Brexit because we are planning to move to France soon.
We’ve never lived in the UK, but had no problem getting British passports. We just needed our fathers’ birth certificates and marriage certificates. And, of course, our own birth certificates.
We renewed our passports back in the fall, just before this news broke.
PS: We are old enough that our mothers’ nationality didn’t matter, even though they both were born in the UK.
Religion ruins everything.