Chime can autodial you when the meeting starts, which is life-changing if you haven't experienced it. We all know we have a meeting at 2pm, Outlook reminds you 15min before, but then at 1:58pm you get nerd-sniped and suddenly at 2:11pm you realize you're late! With Chime the the meeting launches automatically with Accept/Decline options, usually 1min before the meeting actually starts.
Chime also allows a meeting to start before (or even without) the host attending. How often have you had a meeting scheduled by senior leader, then they get pulled away and everyone is stuck in the virtual waiting room and end up coordinating/meeting in Slack instead? With Chime, the meeting starts anyway and the host can join when (if) they become available.