Am I right to imagine it's just about everywhere now?
I first noticed it becoming a thing about 5 years ago, but only in the rougher parts of towns. And then it increased through the pandemic to the point where almost every road in my home town is heaving with them, and it is bloody loud!
I lived in a small village through the bulk of the lockdowns and it was a rare occurrence, only to grow in popularity as time went on. Even tiny enclaves in the Lake District were heaving with them - we climbed Loughrigg Fell nr Ambleside during the summer of 2021 and could hear them circling the town from the top, crushing the sounds of nature to a pulp.
So it's a thing, but I am wondering, is there anywhere where this hasn't caught on yet? I live close to Ludlow in Shropshire and it is here too. I am not sure if there is even a 'type' of person who loves this racket, but it makes so many built environments incredibly noisy. I was once sat having my hair done in a quiet salon when one flew past the window, the sound was so violent and shocking that I nearly flipped out of my chair 
I know a lot of people obviously like it, but it is the dominant sound in so many places now, which is sad because it drowns out the general ambience of a place. Maybe I am old fashioned or something, but I don't like it! Grrr..