This is just a symptom of the broader enshittification of Amazon. Buying anything these days requires wading through a sea of low quality shit knockoffs and duplicate product entries all populated with useless reviews.
At some point leadership completely went off the rails on the quality vs quantity of its selection. I don’t shop somewhere because they have the biggest selection, I shop there because they have the BEST selection.
Some of this could be solved with better software via the search and browsing experience but that too just keeps going steadily downhill.
There's no real point to Amazon anymore. They generally aren't cheaper, especially once you factor in shipping, the entire site is a mess, you risk getting scammed and you can't really find what you're looking for anyway.
The only area where it makes sense is speed of delivery. If you really need something in the next 24 hours they are the fastest. For just about everything else the customer experience is far better elsewhere.
Amazon doesn't have any warehouses within the country, Germany is the nearest, so everything takes a week or more to arrive.