When I create a new Qt project on Qt Creator and start building and running it, the result window has a strange title bar like this:
What I want:
I'm using Qt 6.5.2 (I don't know does this happen when use different version of Qt)
How do I make my window bar on Ubuntu like that?
Interesting part
The Qt packages that I'm stuck with is installed by Qt Installer Binaries.
If I install Qt with the standard Ubuntu packages (sudo apt install qt6-base-dev) and start building the project with them. The window bar is showed as I want.