Add a simple selection-popover widget?
HdyComboRow we use a popover with a list of the model's items and names, and a checkmark.
Maybe we could export that selection-popover as its own widget and use it in
HdyComboRow? We could even offer a way to set an icon in addition to the label.
That would help sharing more than the style implementation with e.g. that popover in Games (and we likely could use it for the disc selection popover too):
Maybe more apps would benefit from it? Can we think of more potential users?