I run IntelliJ IDEA & some other Java GUI apps on my linux box.
Every one of them tends to steal focus when launching up, and doing it in stealthy way. E.g.:
I run IDEA, it starts up in background, I start typing something in my browser. From some point, input starts going to IDEA, be it opened project in it, some window or anything. The worst part is that, while focused, the windows of IDEA still stay on the background, e.g. it looks like my browser started lagging & stopped recognizing my keyboard input.
Is there any way to stop this in Gnome Shell?