Apps initially looked like the fancy thing to do (so marketing departments loved them), and very quickly snowballed into becoming simply "the way it's done" on mobile.
Most of them are just their website wrapped into a webview. They're sometimes awful, but they mostly do the job well enough - exactly as well as if it was a website instead (coming back to this thread's article).
Such as? Give some examples, which should be easy given that it's "most", right?
In the linked piece it details one that is so exceptionally trash that it is universally hated. I mean, ostensibly it isn't even allowed by appstore / play store rules, and it's a shit, lazy thing to do.
My thesis is that the standards for web teams were often much, much lower than for app teams. Where tolerance for shit, tolerance for slow and inconsistent behaviours, and so on was just much, much more common.
That is why there was such a fracture. And it's why the "webview wrapped website" is universally reviled trash.
Do websites have to be bad? Of course they don't. But the norms of the realm made users jaded.