First of all, thanks for making the video. Now I see what you're talking about. However, it's
still not what I see. I'm not trying to be sarcastic or rude, I simply could not experience the problem you seem to have, so I couldn't understand what you were talking about.
I made a .pgl layout with only three folders: VST3, VST2, and DirectX. Then I populated each folder with those FX types, created some sub-folders within those folders, and saved the layout as "Test." When I go to insert a plug-in, if I call up the "Test" layout, I get those folders whether using the Browser or using the Insert menu in the rack:
Unless I'm really misunderstanding, that's what you want to see, yes?