I just got back in from being outdoors. A car with a South African flag sticker driven by a lady overtook me and all the other cars in the rightmost lane in a little space to my (our) right. She was duly joined by a Land Cruiser driven by a local.
I've got the pics, too.

Sorry but this isn't a Qatari specialty. Nor is it restricted to drivers from the "less-developed" world.