Hide / separate Steam games that are not installed

I see with the latest update as per changelog that all Steam games are now shown in the sidebar, including the ones not installed. I noticed that at least the installed games are shown first in the list. I think it would be great to see a further separation of this list, with headers for “Installed” and “Not Installed”, and the ability to collapse/expand each section individually by clicking on the header. This way the non-installed Steam games are clearly separated and I can hide them by collapsing that part of the list.