FYI, just checked and my Pixel 3 XL (Black) has shipped. Expected delivery Oct 17-19. Sooner than I hoped! huzzah!
Wife's Pixel 3 (Not Pink) has not.
FWIW, I ordered the XL first, right as the store went live, and ordered my wife's a few minutes later.
Either Google improved their supply chain or there is less interest in the Pixel 3 compared to the Pixel 2 last year as the delivery dates even for orders placed today are only a few days after release.
It was the same story with Apple's release of the iPhone XS this year which leads me to believe that many users are sticking with their Pixel 2's and iPhone X's from last year. Not surprising as this year both Google and Apple seemed to launch phones that were relatively less exciting.