Skype shows a status of how long someone is away so at a glance I can see where people are. I have to hover over each person's name in Teams to see same thing. It's not terrible but I hate it when features are taken away and there appears no way to enable them. Knowing how long a status is flipped is actually quite useful. The Skype designers apparently knew this.
Sean Ellis commented
This also needs to be settable by hand. I might be logically "away" because I'm working on something else, but still using my computer. Or I may want to signal that I'm away right now, rather than waiting for Teams to guess that I am away.