One of the hallmarks of Skype was logging in and sorting your contacts by online / offline.
I didn't know I was going to take a hit like this when I changed to teams. It's like I went from a Triple-A product to a C rated product. I don't like ANYTHING about teams I pretty much hate it and I want my Skype back. It's really difficult to navigate and 90% of the options are for only 5% of users. Make the 'extras' the hidden stuff and put the important stuff front and center.