You could use Go, and there is fyne for cross-platform GUIs, but I think part of the issue is not having a RAD IDE (like say Lazarus or Delphi as in Object Pasc

You could use Go, and there is fyne for cross-platform GUIs, but I think part of the issue is not having a RAD IDE (like say Lazarus or Delphi as in Object Pascal). There is the convenience factor of using Go to build such, and then there is also the direction of where Google takes the language (which isn't about desktop apps).