I noticed that Reddit behavior recently, but not the other things. I searched for "<productname> Nederland" hoping to find a Dutch source for something I can't get in Ireland, and got a Reddit hit in Dutch that talked about paying €30 for it online with a response talking (also in Dutch) about the thing being $14 at Wal-Mart and Kroger-- neither of which exists in NL. I then noticed the text at the top of the page saying that the post had been auto-translated from English, at which point I got rather annoyed. That €30 in the translated post was $30 in the original: that's not localization at all, rather fabrication. Fucking infuriating.
My theory was that Reddit was shotgunning LLM-translated versions of posts at Google in a bunch of languages to increase hit rate. Maybe Google's really at fault.
Pretty soon it's going to be impossible to find anything on Google thanks to all the transparent autoensloppification of everything, everywhere.