There are probably more website visits than that. People download games and bank apps and things like that, stuff they expect to use frequently, want fast access or offline ability, of they need hardware access.

There are still tons of things that don't need an app. Things that are inherently online and not accessed frequently work fine as sites.

The web doesn't limit what you can do that much, it limits how you can do it, which I think is a good thing. Less to break (Android API levels have the same effect) with fewer original lines of code. Less focus on clever and interesting code and more focus on UI and features (Although they try their best to reinvent the same js framework 1000 times).

A lot of the limitations are probably just Mozzilla hating anything that could be used for tracking, and not trusting users to manage permissions. The trend has been pretty strongly towards making the web very close to native apps, with all kinds of APIs.

Native apps fill a use case very well, that the web does not. That doesn't make the web obsolete.