Universal control feature will not be available on macOS 12.1 either
One of the most exciting features of the new Mac OS X is the Universal Control feature, which allows users to use the mouse and trackpad or keyboard on multiple Macs or iPads, and even drag and drop files between them. It should be noted, however, that this feature could not be used when releasing the final version, and it was expected that Apple would add this important feature in the first mid-generation update.
Reviews of the latest beta version of macOS 12.1 now show that this version will also lack universal control. The release notes for MacOS Monterey 12.1 or iPadOS 15.2 do not mention universal control and will apparently not be included in the final versions. Apple sometimes releases secondary RC versions for troubleshooting; But new features are not usually added to these updates.
It is interesting to note that Apple has stated on the McAvoy Mantry page of its website that the feature will be released in the late fall. Autumn in the United States ends on December 21; Therefore, it is still time for the release of Universal Control in a halo.
Given that the new MacAvoS and iPad OOS versions are expected to be released next week before the Christmas holidays, it is unlikely that we will see the feature available before the end of 2021.