Teams, the business messaging and video conferencing software from Microsoft, is like IKEA's self-service section. If you know how it works, you probably make your way through it with ease. If you're a customer coming down from the showroom, however, it could take a while to find the right aisle, bin, and shelf where you'll finally grab a nondescript box that hopefully contains what you need. But who really knows? Everything is in its place, as long as you know the system for finding it.