Hey @ampcpmgp hope all is well.
If you want to list workflows which use a given subworkflow, you could do something like this
In the subflow to search (Edit fields) node, you can type the name of the subworkflow and the last node will tell you which workflows use it (via either the execute sub-workflow or call n8n workflow tool).
A feature request to indicate a list of parent workflows in a subworkflow is welcome.