I noticed that surface=interlock is used very frequently in Gaza but basically nowhere else: https://overpass-turbo.eu/s/1jK0

Is it correct that this is a subtype of surface=paving_stones? I wonder whether it would be helpful for routing apps if these tags were converted to use the common paving_stones tag, maybe in combination with one of these subtags: https://wiki.openstreetmap.org/wiki/Tag:surface%3Dpaving_stones#Subtags