Isn't there a way to force all apps to start up minimized or make them load in the background so they won't be opened on top of the window that I'm working on, besides making the window to be always on top?

I notice lot of similar questions like this one get blindly answered with solution that involves fiddling with window rules setting in CompizConfig > General > Focus & Raise Behavior but that actually does nothing to prevent this kind of focus stealing.