https://www.techpowerup.com/297829/amd-pushes-ryzen-7000-zen-4-availability-date-to-clash-with-intel-raptor-lake-announcement-date
 
AMD has reportedly pushed market-availability date of its next-generation Ryzen 7000 series "Zen 4" desktop processors from September 15 to September 27, 2022. This would clash with the rumored product-announcement date of the Intel 13th Generation Core "Raptor Lake" processor series. If true, this is possibly a move designed to prevent Intel from sharing performance numbers of Ryzen 7000-series processors in the product-announcement presentation of "Raptor Lake," as Intel can only compare the chips it is announcing with competing AMD products that are available in the market at the time.

A September 27 market availability could still mean a late-August product announcement along the sidelines of Gamescom, with product reviews in the following weeks. It's just that the market availability date is now pushed to late-September. Intel's launch cycle for "Raptor Lake" could see a late-September announcement, but it remains to be seen if product availability is immediate, or timed weeks later. The 13th Gen Core "Raptor Lake" processor is built on the same LGA1700 package as current "Alder Lake," and compatible with existing Intel 600-series motherboards with a UEFI firmware update; although will be launched alongside new Intel 700-series chipset motherboards. AMD's Ryzen 7000-series product launch will be timed with those of compatible Socket AM5 motherboards based on the AMD 600-series chipset, and a new line of DDR5 memory modules featuring the AMD EXPO technology.
 
I don't really understand AMD's logic here, but maybe if there is a delay there will be more chips available. 

Cool GTX
maybe AMD can tweak their drivers with the extra time ?

Tweaking the BIOs is the latest rumor.