The issue today is that developers would create their own framework, most likely something TypeScript-based running in Node or Deno or some Rust-based thing like Tauri, which all might be OK, but with their own opinionated UI styleguides and features, where then half of the native OS functionality then won't work.

You see a somewhat related degeneration in Redmond, where the new Windows Explorer doesn't have an icon in the address bar which is actually draggable so that a shortcut to the currently open folder can be created on the desktop or anywhere where such a shortcut can be used (think TrueLaunchBar). Now you have to go to the parent folder in order to Alt-Drag the folder to create a shortcut.

It's those little things which where smartly developed during the 80s and 90s, which "modern" developers seem not to have noticed and therefore just ignored while re-implementing applications like the Windows Explorer.