To add on to this, the centralization factor of your webapp being a google search away is just one token of the overarching theme of "write once, run anywhere" -- this translates to value for the user. Web apps are quite literally the only thing that can be run on essentially any device that is or can be connected to the internet. Nothing else achieved this because nothing else had an interpreter which was the most essential foundation of browsing the internet.

From a user perspective, being able to instantly download any "app" you need (i.e. visit a website) has been the logical conclusion of high speed mobile data. It's low investment, takes up a miniscule amount of ephemeral storage, and works on anything.

From a developer perspective, you can be assured that your single codebase will run on virtually any device, with minimal adaptations to it. You have enough performance to run mildly resource intensive 3D games, some basic concurrency, and an ecosystem that fixes all of the most important faults in the language (typescript is the biggest one IMO). You also increasingly have APIs that allow you to do everything that you could otherwise do with a proper desktop/mobile app.

Literally the ONLY reason webapps are not the first choice for most companies is because they're not as sticky (obnoxious). Users aren't forced to look at your icon and receive your notifications until they disable them. That's it.