According to the latest news from Raspberry Pi Foundation in Decmber 12th 2022, they will set aside a little over a hundred thousand units, split across Raspberry Pi Zero W, 3A+ and the 2GB and 4GB variants of Raspberry Pi 4, for single-unit sales before the holiday season.
These products are flowing into the Approved Reseller channel now, and this is already translating into better availability figures on rpilocator. You can search on https://rpilocator.com/.
For those of you looking to buy a Raspberry Pi for hobby projects or prototyping, the advice we gave back in April still holds: always buy from an Approved Reseller (they’re under contract with us to sell at no more than the RRP); use tools like rpilocator to keep an eye on which resellers have recently received stock; and consider whether your project is a good fit for Raspberry Pi Pico or Pico W, which remain in a strong stock position.
The Raspberry Pi Foundation expect supply to recover to pre-pandemic levels in the second quarter of 2023, and to be unlimited in the second half of the year.
To know more details, you can refer to the original news from Raspberry Pi foundation.
Original News from Raspberry Pi: https://www.raspberrypi.com/news/supply-chain-update-its-good-news/