I buy a lot online from Austria. Amazon.de is essentially an abstraction over AliExpress. The products are largely the same. The only difference is if you want to wait 30 days and maybe have to pay import duty or not.
Really annoying too. A few years ago Amazon.de was great for buying stuff just not available in the Netherlands (Germany has a much larger market for people doing various crafts at home, and some home improvement products are a lot cheaper there if they are German-made), but it has really slipped. We have Amazon.nl now too, and it sucks just as much with vague listings and it seems to be mostly resellers.