The major differentiating factor that Google has had in every product category is that their products are free and you have to deal with ads (and they monitor your behavior for profiling you and your interests).

GMail and Google Maps were revolutionary when they came out, sure, but the vast majority of Google's products now are... fine? at best? And a lot of their "big products" were acquisitions that they absorbed in order to further the core goal of the business - to organize all the world's information and use it to serve ads to people.

Meanwhile, Google has a litany of products they've started internally, launched, ran for a while, and then let stagnate or canned entirely; anecdotally I've heard that this is because your bonuses at Google hinge on your ability to launch a product and not your ability to support a product, so it's beneficial to get something launched and then immediately leave to go launch another project rather than polish the one you just launched into something to be proud of.

I'm not sure if that's true, but it would certainly explain a lot; if Google launches something and it's bad or it doesn't click, they just give up on it. Google Wave, a half-dozen chat apps that I can think of, Stadia, and dozens of others. Things that Google launched, which had problems or didn't hit mass adoption instantly, and then just petered out and were retired with all of the time and energy and money put into them arguably wasted - products that people wanted, and wanted to succeed, but which weren't revolutionary successes at launch so they weren't worth further investment.

Meanwhile, they (and most of the industry) are pushing AI for some reason despite the fact that almost no one actually wants AI to be the only way that people interact with information.

This all reinforces what I've been saying about Google for decades: they're not creating things that users want to use, they're creating things that they want users to use. Sometimes those things align, but when they don't then it's not worth further investment (except, apparently, AI).