All new activations are marked "Virtual"
I activated a new machine and re-activated a machine for which I already had an activation, and both of them ended up listed as "(Virtual)" on the LINQPad Activations page. Both (I believe) were done using LINQPad 6.6.4. Windows 10 (1909). One AMD, one Intel. Let me know if there's any other info you need from me to troubleshoot.