Here's how to look at this:
With larger companies, they order hundreds of frames all at once, and the factory builds them in the big bulk shipments for pennies on the dollar. They are shipped in a container by the hundreds, then arrived and are distributed to dealers right about the same time the brand announced "THE ALL NEW 2020 SPECIANTORCRUZEETEEDALENCAL!"
That allows the consumer to rush out and buy them immediately only hindered by stock.
Buyers of GG product need to remember that in reality, they manufacture more similarly to a custom builder. They don't want to pay to build a bunch of bikes they can't sell.
You order, they weld/build. If you happen to order at the same time as 20 other people, that's going to create a backlog. The same time as 50 other people? That'll create some supply chain issues (especially right now with COVID.)
Only once the backlog/waitlist is filled do they start to make some extra stock for immediate order fulfillment and warranty stock. Until then, it's a first-come-first-save basis.
I know this pisses off some folks, especially when GG claims a 3-4 week wait, then changes it to 6-8 weeks. I waited 11 weeks for my Trail Pistol because I ordered when the big rush happened in 2019. I just reconciled that with the fact that I'm getting an American made, welded by ColoRADans, affordable carbon bike that is in demand.