I am having trouble finding it now but I used to use a Picture in Picture extension that just made the controls more apparent (I use Brave and you have to do a menu dive for it by default). The extension had been featured by google when I added it.

At some point they signed on with a monetization scheme that:

- Redirected you through its sales attribution url any time you accessed a store (which bounced you to the site's front page instead of your search result)

- Rearranged your search results to put its affiliated stores at the top

- Marketed itself mainly to retailers as an ad network with no mention of browser extensions anywhere.

If it werent for the annoying redirect I probably would have never noticed that something was wrong.

Most of them hijack search results and do cookie stuffing.