While I get that there a lot of ads -- particularly if you search for something with the intent to buy -- I tried out both of your example queries.

"sofa beds": Popular Products section (5x2 grid of chips) Reddit link: "Are sofa beds actually practical" Wayfair Reddit link: recommendations Wirecutter "Discussions and forums" section (Reddit and random crap) Ikea "In stores nearby" (5x1 of chips) "Deals on sleeper sofas" (5x2 of chips) "Things to know" section "Brands" (one row of chips) Furniture store Furniture store Furniture store "More products" (5x2 chips) Furniture store "People also search for"

None of these were marked as sponsored. I assume, but don't know, that the Popular Products chips are sponsored somehow.

"hard drive": Popular Products (5x2) Wikipedia Best Buy People Also Ask section Reddit: request for what brand is good Brand Picks for You (5x1) Things to Know section Amazon link PCMag reviews Reddit: "What exactly is HDD?" Brands section NYT review article What People Are Saying section (a weird mix of stuff) Wikipedia More Products section Store link People Also Search For section

None marked as sponsored.

Not that crazy for a vague, commercially-oriented search. Certainly not 100% ads.