It seems like everyone wants to take on Slack these days when it comes to virtual office systems. The latest is Facebook, which, according to TechCrunch has quietly added screen sharing and released a desktop client to its Workplace chat app. The program is available for both Mac and PC, and this could signal that similar moves are en route to consumers. That could take a bit, though. As of now, the desktop client is in beta. The screen sharing feature allows for sharing your entire desktop, or just one specific app. Because, seriously, do you really want anyone at work to know you're playing with Facebook's Gameroom desktop app on the clock?