alt Hacker News...exactly, and at some point you want to show inline animations or videos and all sorts of other media, show webpage previews, play audio snippets and all the other things things a webpage can do, and then you're back to either integrating a browser engine or attempt to write one from scratch (the browser engine can of course be provided by the system webview, e.g. what Tauri does).
I’ve programmed inline video players for 25 years. Same with audio and everything else. We had “accelerated” graphics back with winxp and gdi+ and of course OpenGL over ssh with x11. Browser preview pages in most apps are usually snippets of text and maybe an icon or pic. Not rendering a full page.
In a way, applications regressed a lot with react native and electron. I get it’s easier to develop but the apps are very bloated and underperforming even on computers with 10-100x more power.