@jgrafton the Steal time CPU usage "may not" have anything todo with vmware tools.
I have seen this happen by just hot migrating older linux systems form host to host inside the same pool... as well as hot migrating between two different pools. I have also seen the load balance plugin trigger this on old linux versions when it moves a VM from host to host. i honestly dont think it has anything todo with XCP-NG but more how the linux VM is dealing with the very short pause during migrations. == causes 100% cpu steal time to kick in.