Sorry, but unsure I understand your question.
I want to plug the USB plug of my Mac power cord into the USB on my laptop then plug the two prong AC plug into the outdoor portable generator instead of a normal wall socket in my house.
You need find portable generator that has a USB C port!
Try it and report back your experience!
Should we be worried about that silence?
No I just want to know his experience using the Generator to charge a laptop!