Hmm.

How about Rust is Rust. Swift doesn't really appeal to me as a high level programer. C#, JS and Python largely pay my bills.

The non apple ecosystem just isn't there, and it was never built to be cross platform. If I need to build something I'd probably lean on the languages I already know.

A few times a close friend has wanted an app built and I went with Flutter/Dart + Firebase.

I'm using Godot for games.

Learning a new language, even a similar one is a time investment. In fact I just want better tooling for the languages I already know. Word to UV for Python.