A few folks have, but generally it seems that the date is a touch short…of course as this is where folks come to complain to support we may just hear about more of the slow deliveries!
They build them to order, and the factory is not the same place as CS is located so they often don’t get updates in a timely manner. If you haven’t already sign up for UPS & FedEx’s delivery notice services (app) and you’ll get a notice anytime something is scheduled for delivery to your address - that’s how many of us found out when they were actually going to arrive!
I think these are really days of uncertainty when it comes to the supply chain. My thinking is that the official notice from Glowforge is your best info. You can use your wait time to get everything in order for the arrival of your machine - table, window vent plan, supplies and also get some designs ready to go.