Yes, Microsoft Cross Device Service is causing high CPU usage in Windows 11; no, there is no fix
If you have been experiencing higher than normal CPU usage in Windows 11 recently, you are certainly not alone. There is good and bad news.
The good news is twofold. Firstly, the cause of the issue has been identified by Microsoft, and secondly, it only affects Insider builds of Windows 11. The bad news, however, is that there is no fix available, and no indication of when this may change.