Yep, I noticed the exact same thing. Glassdoor is a complete scam, and it has been for as long as I've had a career. I do not even check anymore.
Their bigger issue is that company quality doesn’t change much from year to year, so the pans that were good in 2019 are probably still good now, which is boring.
https://www.xdesk.com/wirecutter-standing-desk-review-pay-to...
I think it has to be a nonprofit or individual who isn't doing it to make any money, though. If it's a money-maker, you can't trust it.