The switches aren’t native to SmartThings in the sense that there aren’t any official device type handlers for them yet, but there are community – created device type handlers that work well. The different touch patterns are interpreted as different button numbers, so typically they work just fine with standard features like the official SmartLighting, you just have to know that “button two” is double tap on the top of the switch or whatever. But you’ll find detailed discussion of that in The thread for whichever custom code you end up using.