> But you haven't proven that web apps don't feel janky, fragile, and out of place. Because they just factually do. The native UI elements of each OS that you can tap into from the web is limited, and not enough to create the same UI in a WebView that you can in a native Swift app, for instance. You of course can coerce the web into imitating any appearance you care to recreate, but it won't look that way by default, and it'll now look even more starkly out of place on every other platform besides the single one you targeted. This is all an intentional aspect of the web as a cross-platform platform.
This sounds like a you problem. Web frameworks have improved significantly to handle anything way beyond text and that has been the case for a long time. This is really about corporations trying to exert power over the open web by trying to route around it with apps.