Hi Martin,
Over on elevenforums, there is a discussion thread at https://www.elevenforum.com/t/kb5052090-windows-11-insider-beta-and-dev-build-26120-3360-24h2-feb-28.33864 that mentions in the Total CPU Utility section in the Sensor Status Window, the % can go up to 100% as in my case:
Mines...