I would argue that a true anarchocapitalist world would, in its built form, look much closer to Europe and Asia (and pre-WWII America for that matter): Dense, walkable urban cores served by streetcars / light rail, with intercity connections largely by high-speed rail.

The current American mode of living of "drive everywhere suburbs" is supported by 75 years of subsidies and regulations, from parking mandates to zoning regulations, all the way up to the US Global Empire to keep oil flowing.

Take all that away, and suburbs don't pencil out.