When I (the consumer) think of successful Google products, I think of search, email, maps, productivity (docs, sheets, drive), Android, and Chromecast. Which of those launched under the current CEO?
I'm sure I'm missing another success story, but really, when was the last time Google hit a home run?
It's probably not helping that most of their newer products get relaunched/branded and splintered so frequently leading to consumer confusion; for example, Android Pay -> Google Wallet -> Google Pay -> Google Pay and Wallet.
Or the evergreen GoogleTV -> AndroidTV -> GoogleTV.
Or Hangouts (the massively online public video space) -> Hangouts (the chat app inside GMail) -> Hangouts (the private videoconfering app) -> Google Meet.
With Apple, definitely Apple Watch, they also leaned into Apple specific services with lots of success. Apple TV+ started a little shaky but its growing at a good clip. The new Apple TV's have been pretty successful.
Apple also shipped the M series chips, revitalized the Mac line as a result, and been giving proper attention to the iPad, finally.
Amazon has been innovating in logistics and Alexa is (was?) a genuine innovation when it came out. I think, ironically, AWS lacks a lot of innovation to pivot to more user friendliness and understand-ability, but its its still growing strong.
Google has been more flatfooted by comparison, with more product closures than successful projects, period, let alone hits.
Amazon ads - from 0 to a multi tens of billion $ business at probably a 80% margin. The reason your Amazon results are probably awful today is precisely this.
Amazon also has a more decent content strategy (eg why they bid on the NFL rights) than both Apple and Google.
Moving to a completely different architecture is a big deal, launching their own architecture is an even bigger one. I am astonished at how readily it was accepted, how well it seems to have delivered (I don't own any of their newer products yet), and how smooth the transition seems to have been for OS users and software vendors.
It's a huge deal, far more interesting than individual products like the watch or earbuds (successful though those are, they're not paradigm shifts).
AWS has added hundreds of products - they even arguably have a better hosted Kubernetes than Google Cloud does. I suspect AWS Aurora alone makes hundreds of millions of dollars a year as well.
Chromecast came from Pichai's era - Maybe before he became CEO, but he had had broad authority even then. Not claiming he's a hit maker, just dropping a trivia.
Calling Android an "acquisition" is really overblown. What Google bought was a handful of employees and a 3000 line JavaScript demo. There was no "Android" OS when Google bought them.
source: Androids: The Team that Built the Android Operating System
I'm sure I'm missing another success story, but really, when was the last time Google hit a home run?