I left WebView based solutions out of scope. As you can see, I'm focusing on NativeActivity / GameActivity in my post. Though WebView brings you interesting options. For example, iced is inspired by Elm, and with Dioxus you can use Elm to build mobile apps.

Dioxus has this idea stuck that it's webview only. They're actively working on (and ship at least in some form of alpha or beta) a native-renderer backend.