You could go show us where an OEM system with a Zen 3 can be ordered.
Here's one with Ampere that you can order right now :
View attachment 34108
I think you just want to argue, but....
You can find a list of OEM builders here
Here's 2 examples to start you off.
AMD Ryzen 5000
Best High Performance Gaming PC - Specialize in Gaming Computers and Custom PC. Award Winning Custom Built Desktops and Gaming Laptops for over 14 years.
www.cyberpowerpc.com
These guys have 6800 and 6800XT options even
Ready To Game PCs | Pre-configured Desktops
Shipping faster than custom systems and designed for your unique needs with our award-winning craftsmanship, all professionally configured MG-1s undergo the same rigorous testing process and component selection as our fully customizable PCs.
maingear.com
I'm guessing in the end your not looking to purchase anyways.