project unityは今のところlenovoのwindows10/11PCとのみの連携になりそう
https://news.lenovo.com/pressroom/press-releases/brighter-future-for-hybrid-with-premium-tablets-with-5g-and-next-gen-add-ons/

Initially launching in conjunction with the Lenovo Tab P12 Pro, the Project Unity application effectively transforms the device into a smart companion for your Windows 10 or 11 Lenovo PC.