I think Google has done a great job of diversifying their products and services, so the loss of Google Search will sting, but shouldn't be a big deal. Their AI research also helps in dampening the damage, since AI is the one that is causing the search's demise. I think the current prevalence of the use of Google Search pretty much gives them a big boost in the AI training department, and knowing what data people usually look for.
I am not sure it was a great job. They are still heavily dependent upon search although the success of YouTube as an entertainment center has helped a great deal. They still need another major product. Perhaps something they create from Gemini will be that.
Some consider what Amazon did as the best, but I checked Google's products and they are pretty popular too. Android, Android TV, Chrome browser, Drive, Gemini, Gmail, Home, Maps/Earth, Pixel, Translate, Waze, and YT; to name the popular ones. They focused on their closely knit applications which are used by a lot of people worldwide. Amazon mainly focused on the US.
Google has done a great job at that. However, a lot of built into their Android application meaning they are simply part of the service. Nothing wrong with that just from a monetization standpoint, it is not a revenue driver. Helps for advertising but, as mentioned that is going away.
That said, Google has more data and billions of phones with their OS. As we learned from Microsoft, that is very powerful. They will leverage it for replacement revenues.
The broadcast system they are building is very powerful. I would not be surprised to see them as one of the largest companies in that field eventually rivaling companies like Comcast.