Not usefull... with more than 100 hundred artboards, many of them with similar names, or even not meanuingful ones, the act of search something is very time consuming and un-intuitive. When at last I find what I was looking for, I forgot why I needed. Is like to search components in assets... hundreds and hundreds of small icons with no hierarchy, too much cognitive effort that breaks de work flow and focus.
XD needs a meaningfull and user friendly way to manage vast amounts of "things", as usual we found on a normal project. My projects usually end with hundreds of proposals, user cases and alternatives, and uncountable components.
Sketch solved very easilly years ago, with folders to organize components. It is as easy as follow "atomic" design guidelines... each component is in a logical hierarchycal tree, you can find quick whatever you need using only common sense.