The above panel is showing any SQLServer that needs DBA attention. But there is this server highlighted in the above screenshot showing a significant gap b/w OS CPU and SQL CPU. Any gap of over 15-20% b/w OS & SQL CPU consumption is something that should be investigated. This was an indicator that there is some other non sqlservr process that is consuming high CPU on the host.
Friends don’t let friends run anything other than SQL Server on a SQL Server machine.