I’m not clear if it’s a mobile only thing yet, but if you’re wondering what’s wrong with the search results page, this is it.
Edit: example image of a search trying to see if someone archived Intel’s ssd Ark pages before they were purged, a short scroll from the ads at the top: https://imgur.com/a/v6G0l5K
As mentioned, you can’t turn it off, so your solutions are:
For some reason Firefox Android often freezes when interacting with tiles in Google search results (especially bad with image searches). It's really annoying.