not sure about rest of Europe, but when I search for product I go to local price comparison website, which is much more popular than Amazon, since by my experience pretty much everything on Amazon is more expensive than in plenty of local shops, other option would be I guess Aliexpress if it's not rushing and doesn't have to be some specific brand
article seem to be as usual very US-centric, Google is huge in Europe, Amazon not so much. in China Google doesn't exist and Amazon has also only leftovers
can't say I would miss either of them, since pretty much only useful products from Google for me are search (easily replacable) and Photos (not that easy, but there are alternatives)