I didn’t downvote you, but if folks are coming here looking for answers then a simple “my guess” based (apparently at least) on pure speculation and without ins

I didn’t downvote you, but if folks are coming here looking for answers then a simple “my guess” based (apparently at least) on pure speculation and without inside knowledge of how Google’s setup _actually_ works, doesn’t add much to the conversation. If your post had included something like “I used to work on Google search”, “I used to work on Bing search”, or “I’ve spotted this piece of data in the network responses being sent to my browser and therefore” you might have gotten a more favourable reception.