VST Plug In Collection folder

Can anyone tell me where the VST Plug In Collection folders are stored? I have a couple of collections saved in folders that did not port over when I updated to C11 from C10.5. I hate to have to recreate them.
Thanks

Fire up C10.5 and look at the paths shown in the Plug-in Manager which is where they are located on your specific DAW.

Thanks for your response. Maybe I wasn’t clear in my request. I know where the VST plug ins are located on the hard drive. I cannot find the ‘Custom Collections’ folders I created with various plug in collections for specific recording and mixing situations.