I read the thread:
mobius trip, “Virtual Copy Not Visible in Collection,” Oct 25, 2018, (https://community.adobe.com/t5/lightroom-classic-discussions/virtual-copy-not-visible-in-collection/...).
I see that others are working differently than I am.
I wish Lightroom supported a workflow that allowed me to simply populate Collections with virtual copies. I do not want virtual copies in my original folder. I do not want non-virtual copies in a Collection. I want to set a Collection as the target folder and every time I hit “B” have a virtual copy created in the Collection. Additional virtual copies can link to the original or to a virtual copy, those are two different workflows.