https://wccftech.com/pixel-6-pro-launch-happen-before-iphone-13-rumor/

When Google provided a preview of its custom Tensor chip, it announced that the Pixel 6 and Pixel 6 Pro would be announced this fall. Naturally, a specific date was not mentioned, but one tipster believes that both flagships will be unveiled before Apple showcases the iPhone 13 family.

According to Google’s machine translation service, the tipster goes by the name Panda is bald. He claims that the Pixel 6 and Pixel 6 Pro will launch on September 13, whereas the iPhone 13 family will be announced on September 15. Bear in mind that the dates provided by him are likely according to the time zone in China, meaning that the global announcement might happen one day prior.