I am big into foldies and none of them roll for beans. Lugable, hard to lift due to their bulk and weight, for a feeble old guy like me.
Best thing I have done is emulating the Brompton GOrack ($$ item) with an old collapsing 2 wheel trolley if I have any distance to go.
Heavy (sorta) and inelegant (huh yep), but easy to roll once set up
Foldies are all about compromises, just gotta decide what works in your application,

The more I think of this, the more I am aware of the lack of "universal " rolling, with the idea that it should be like rolling a unicycle around.
Not gonna happen, in more than one maybe two situations, but will "not be too hideous" in others.
Funny are the tales of "concealing" a Brompton in a cover , as an example
Foldies really should be better categorized as Collapsable, lug-able, drag-able , packable, stashable. Roll able on anything other than smooth flooring, not so much.

PS: Agree with linberl below , weight is a big deal once folded. Compactness balances the weight of the Brompton , my Dahons are bulky and feel much heavier than they are at the same weight. the BFsatrday feels 10 lbs heavier than it is, due to bulk. Less than 20 lbs/9kg is good once the hinges are invoked.