How do I Show Desktop like in Windows?

I'm using Kubuntu (19.10 or 20.04 LTS), and when I press Window_key+D or hit the "show desktop" icon in the bottom-right corner, it hides my open windows and shows the desktop. However, when I open something else from my desktop, all the windows I had before come back up alongside the thing I just opened.

This is different from Windows, where if you show desktop, your open windows remain minimised even after you open something new.

Is there some way to get the Windows-like behaviour on KDE?