I've tried Wox and other launchers that include Everything several times and I always go back to having a launcher for, well, launching and using Everything for searching. For me the compact design of a launcher is not well suited to show a couple of file search results. But of course that also depends on what files you usually search for, how many results there will be and what you do with them. If, for example, you often search for documents it's fine. But I usually search for source code files and what not and there it's different.