Introducing multiplayer actually reduced the overall complexity of Figma’s UX because it removed all of the awkward workflows that people had been using to work around the lack of multiplayer. The result is a few simple features that combine in powerful ways to provide a great collaborative editing experience.
I'm very curious to see where multiplayer might fit into my design process and where it can be creatively bent to fulfill new purposes (e.g. using it to multiplayer myself on a phone as a mirroring solution).
The Figma team has been building up to this moment for a while now, and I'm excited for their product to keep evolving. A tool with files that are automatically version controlled, are treated as a single source of truth, and that enable online collaboration by default is a huge step forward.