Arrange Parent Flows Without Affecting Linked Child Flows
When artboards are grouped under a flow title, clicking and dragging on that flow title allows you to move and arrange all of the artboards associated with it.
If you have multiple flows and they are all linked, it's impossible to move a flow and NOT move any child flows under it.
It would be great if you could hold down the CTRL (Command on Mac) key to break that association temporarily while moving.
See attached image for more clarity.