That's right. Concrete is porous.
I'm quiet here, in that I've only seen olden days California small porches, usually with faux spanish houses like my aunt's, have the concrete painted, and, of course, the occasional garage steps - I may do my own one step between garage interior and house to distinguish it to the eye. Have the paint, a shock yellow, and my doing this awaits more clearance of boxes.
My bias is to natural concrete, but I've spec'd integral and dust-on stains many times. Generally, I like paths and driveways to "read away" and not be the stars of the scene. BUT, that said, I'm listening, since I also can get "landscape play".
And I'm nearly always charmed by garden segments like herringbone brick paths, various stone arrangements in japanese gardens, even the decomposed granite between corten steel at the Getty. So I contradict myself at least somewhat, re "reading away".
I've no idea re wear re automobile tonnage on a painted driveway, would be interested if it works over time and under what climate conditions, since, pooper that I am, I like the ability to do this kind of driveway play.