My current home has a “real” stone exterior with a very unlevel surface for mounting anything to, and it’s an absolute pain to try to drill through (really not sure what kind of stone it is, but some of them have a lot of iron deposits and geode crystal type structures). When we replaced the furnaces, we had the installers drill three 2” holes for new pipes, and it took one guy all day to do just that.

So, cameras are all mounted to the metal perforated eaves with added wood backers, even though several are in a kind of loft situation where the eaves are like halfway down an interior sloped wall. Those required push sticks, swearing, and tons of patience to get to from the attic. But I really don’t like drilling into brick or stone unless it’s an absolute necessity.