Inspired by: https://twitter.com/Rimmy_Downunder/status/1686188323164028928
Transcription:
A stick figure pondering: "Hm. If only there was a platform for my desktop application"
The stick figure stepping over many native GUIs to pick up Google Chromium.
The stick figure: "Ah! Here we go!"
Its hard to answer without knowing what your app needs to do.
For a generic crossplatform program, I would say QT or GTK when programming in C/++.
Also depends on the language being used. Even if it's javascript, you could use something like Tauri or Neutralino, which can also make an executable bundle which uses the OS's native HTML renderer, no bundled chromium needed.
Some languages + recommended graphical frameworks: