On the projects page I can sort the projects by Unity editor version. This is somewhat helpful to determine if I still have Unity editor versions installed which I am not longer dependant on for any projects. Would would be really nice to have is a badge on each Unity editor version on the installs page that has the number of projects currently referenced in projects page. No badge means I can most likely remove that editor version for now.
Looks helpful. There are of course design questions to consider. Would it show only local projects or online (cloud stored) projects too? And what about projects that are not stored in a Unity native source control? How would the system know about those?