I’ve been quietly crossing my fingers. But as far as I can tell, none of these issues (nor the default type hint one) have been addressed in the Rhino 7 Beta. While I gather that effort is being put into developing a better scripting experience/editor across Rhino in general. It’s quite disappointing to (potentially) have to deal with a broken GHPython editor till Rhino 8 (or later) 
As a refresher on issue number 1, try going print range(1000000) in Rhino 5, then Rhino 7 Beta.