Apple has released the fourth beta version of macOS Monterey 12.1 to users involved in the beta testing program for Macintosh system software.
MacOS Monterey 12.1 beta 4 includes SharePlay which allows for screen sharing and video sharing over FaceTime, along with some small improvements to other features like Hide My Email.
Universal Control, arguably the most anticipated feature of macOS Monterey, is yet to be included in the fourth beta of macOS Monterey 12.1, and it remains to be seen if the feature will be included in the point release at all. Universal Control will allow a single mouse and keyboard to be used across multiple Macs and iPads.