Does anyone know of an X server or Wayland compositor app for Android that gives each window its own Android window (or whatever they're called on Android)? IMO that'd mix perfectly with Termux for GUI apps.

Yes, I know Termux-X11 exists but that app is a single Android window (again, I'm not sure if that's the right term) for all X windows. I'm wondering if there's an app that creates an Android window for each X window.