Hardly seems likely they'd ban all video cameras; So sending footage off to a remote location (possibly diff country) to process the file for faces is a trivial side step... Would love to think there's a comprehensive solution to this but it's a difficult thing to just say 'it's banned'.
Maybe for reference, NAL but that's pretty much already the case here in Germany. Save for some exceptions, that are relatively narrow (such as for law enforcement - and even there it's not whilly nilly), you can't just legally place video recording devices in public areas, even moreso if you don't own that space and provide obvious notice. Sending that data off to some remote country would be an even worse, though relatively unrelated, legal nightmare.
A lot of laws are trivial to break, it would be a bad reason to not implement it.
That's probably a break of the GDPR so it will still be against EU law and they are taking the GDPR pretty much seriously, so getting caught is going to be a real risk.
I'm sure there will be at least some attempts, but the legal framework to stop those exists.