I wanted to transition to this development model a year ago, but unfortunately X11 forwarding was slow on mobile connections, and as far as I'm aware (if you know a workaround let me know), on Linux, RDP can't be made to just share a single app, only full desktop sessions.
We have also tried Jetbrains Projector, which is basically a different rendering engine for Java Swing. A remote IDEA instance was rendering the UI through HTML, i.e. you could develop in a browser. It worked relatively well, but there were some issues around copy/paste, etc.
They have an electron-based client that improves on some of these issues that stem from running inside a browser:
https://jetbrains.github.io/projector-client/mkdocs/latest/i...