This shopping season basically clenched it - Amazon sucks.
It used to be useful for finding certain things. Then it seemed to abuse vendors more and more, so I began to use it more as a search engine to discover vendors which I would then contact directly on their own websites, and purchase there. At this point, the "Temu effect" has kicked in on Amazon and most of the vendors are Chinese knock-offs and rip-offs of other products - and the search results are limited to the same crap over and over. Enshittification indeed.
At this point I only keep Amazon because a few vendors whose consumable products I like are *only* available via Amazon - in fact the vendor website links to their Amazon store instead of their own warehouse - so I still make use of it. But that's it. Ugh as in ugly.