There are, and it's absolutely mad. No, I don't participate because I'm the equivalent of someone using a cheap prepaid phone that gets no software updates, ever. I mean, among my uprights I use a $150 Hoover and I used to own a $80 Bissell. Horrors! I'd be laughed right off the discussions.
Dyson might be okay, but these guys (oddly it's all men, no women that I could detect) don't play...we are talking Riccar, Royal, Sebo. My $800 Miele (that became a dirt-leaking piece of garbage within 3 years) just barely makes the cut. That vac is now my garage vac. Since then I vowed never to go above $450 on a vac again.
Mostly, there seem to be people on YouTube following certain channels just to watch vacuums being demonstrated. The most popular ones pit various models against each other.
The vacs have to plow through mountains of debris consisting of cornflakes, flour, cat litter and pet hair. So basically that's everything that's on the floors of my house except they grind it into carpets, which I absolutely do not permit to happen in my house!
Its basically like monster truck rallies but with vacuum cleaners! 😬
If there are people out there talking about using vacuums to actually clean a house like I do, I didn't find very many of them.
The lack of women was puzzling. I saw a lot of men talking about vacuums their wives have. But mostly I saw men talking about their own vacuums. (Inexplicably my Gboard auto fill just tried to fill a different v word in that last sentence!).
Some women do have reviews on YT channels, but the one I saw just sat there next to her vacuum and talked about it. She was very informative, but I have to admit, I fell in love with the Henry after watching it plow through a gigantic pile of debris during one of the competitions!