One observation does not a trend make.
Take several observations over time to discern the trend. Londoners see it, tourists may or may not see it depending on their frequency and locations of visits.
Silly me. I go to England and specifically to London twice a year for extended trips. Oxford Street, I can definitely say I’ve seen that many times. As for shopping and interacting with Londoners, I do see Muslim women working in shops wearing simple scarves or veils but not the complete outfits.