Personally experienced this. I bookmarked a keyboard I was interested in purchasing in a month or so. When I went back it was a completely different item with the same reviews. Just today in fact, I was looking for an office chair seat cushion and found a very telling reddit comment from 3 years ago[1].

I know Amazon has a bulletproof return policy for the most part but I don't want to be hassled with returning everything. This just results in me just not using Amazon. You may be able to justify it for large purchases because of Amazon's return policy but for something as mundane as a can opener or seat cushion? Just shop elsewhere.

[1] https://www.reddit.com/r/buildapc/comments/a72co8/seat_cushi...