Along with the Nikon Z 9 and Sony a1, the Canon EOS R3 is one of the hottest cameras on the market, representing the current pinnacle of the company's technology. If you would like one of your own, best to get your preorder in as soon as possible, as it may take several months to get one.
Canon Japan has issued a statement that the new EOS R3 mirrorless camera is facing similar production issues as many other electronics around the world due to the ongoing chip shortage, and this, in tandem with the camera's popularity, will result in preorders taking possibly over six months to reach customers. Also on the same sort of timeline is the RF 14-35mm f/4L IS USM lens.
In addition, the RF 16mm f/2.8 STM, RF 100-400mm f/5.6-8 IS USM, and RF 400mm f/2.8L IS USM are also on extended delivery timelines, though not as long as the EOS R3 and 14-35mm f/4L. While the news is definitely frustrating for anyone excited to get their hands on the new gear, it is not particularly surprising the global chip shortage, so be sure to get your orders in as soon as possible and be patient.