I believe that I may have found an/the issue.
Your zipped mod path/name is: C:\Users\<username>\AppData\Roaming\Factorio\mods\greedy-quickbar-filters_0.15.0.zip
When you open the zip file. The folder inside is called: factorio-mod-greedy-quickbar-filters
I was under the impression...mostly by evidence of all the other mods...that the inner folder name had to be identical to the zipped folder name.
Thoughts?
I'll correct my copy and see if that restores the behavior that I was expecting to see the mod perform and report back.