Affiliate marketing and SEO optimization have pretty much destroyed the usefulness of searching for product reviews.
I usually just add "reddit" to the end of whatever I'm searching. It's the only way to read what real, mostly-unincentivized people think about something.
I wish Google had a way to "downvote" results. Sure they would have to mitigate artificial manipulation, but what they have currently doesn't work well.
I wish this was true, but I think companies are fairly wise to this now. It wouldnt take much effort to add fake positive comments about a brand or product. The technical word for it is “astroturfing” [0].
In my opinion there is no good unbiased source for consumer product reviews, maybe Which? in the Uk would be an exception though I’m not too familiar with it.
I'm sure astroturfers will soon adopt text generation en masse to create human-looking profiles and add credibility to their recommendations, but I don't believe that's standard yet.
A complete side note: the way these reputation managers aligned themselves almost perfectly with the company's official statements/position was what made me disillusioned with SpaceX and Musk in general, since I saw exactly the same things happening there
I would argue that Which is no longer a reliable source of unbiased information. They have affiliate links and the number of products tested for each category is suspiciously low.
Office chairs is one recent example where the one you are thinking of is not even listed, although a much cheaper version from the same company is cited as the best buy, (Herman Miller Verus Triflex).