@galb1994
I believe everything of mine in Creator is on whatever the defaults are. I do assume you are Linux and not Win/Mac? I will be on whatever Creator comes with Ubuntu 20.04 apt-get (unless I fetch it myself, I forget).

Hello. Thanks, I disabled clang plugin and now highlighting works in proper way

@George-Liao
Hi
I can't say why it dont like the opengl ( can be many reasons)

You can try to see if newer drivers are available and also try some other opengl
enabled apps to test if the opengl is working.

We are just normal users here. the devs hang out here
http://lists.qt-project.org/mailman/listinfo/development

I assume by qtc you mean QtCreator?
QtCreator usually stores its settings in ~/.config/QtProject
So they actually are user specific.
Do you use same user account for different users?
And which settings do you change?

Hi! You can configure the keyboard shortcuts as you wish: Tools > Options... > Environment > Keyboard.