@poddingue I found it in a google search.
Supposedly
xe vm-param-set other-config:auto_poweron_delay=<Delay_In_Seconds> uuid=<VM_UUID>
I have no idea whether this is AI hallucinating or whether this was relevant to older releases or what.
But when you wrote it explained the behaviour what did you mean? I don't understand. The setting doesn't delay the start of the VM I am setting it on? Because from what I could see it seemed like it delayed the start of the next VM instead.