I kind of get this, but quite a lot of the websites/webapps I use are better off on the web.

Imagine that from tomorrow, hackernews is an app. You can't do stuff like open 10 different tabs of it, put it in a tab group, expect it to restore where you left off after shutting down your device. It's interaction with other pages is also wrong. It would have to either open a webview or a separate browser app, both of which make navigations more complex. Extensions no longer work, you can't change stylesheets or use user scripts and so on.

This is why I don't like Reddit pushing an app and breaking/limiting the mobile website. It's just not how I want to use it at all.