That would be useful for a lot of applications that are very frequently used like web browser or some applications from other desktop environments. I know there is kdocker but native option would make kwin even greater. Besides kwin consumes memory which is not the best solution for application that is used all the time, every day. And this will prevent program developers from necessity of adding this option and users from begging for it for every single application that users want to manage this way. For example Zanshin doesn't have this feature yet.
Technically, this is impossible because kwin can't close or minimize windows to systemtray.
I don't quite understand. > Technically, this is impossible because This "because" doesn't explain anything. Why not possible? Because it hasn't been done yet or because there is no way to do it? Why KDocker can do it and not kwin? Can you give a more clear explanation?