Google's latest flagship phone has only been on the market for 10 days now, yet seems to be out of stock already. The OEM has had to replace its "Order" buttons with one that says "Join Waitlist" instead on its website for most of its color and storage options. Then again, it might still be available through carriers, in the US at least.
https://www.notebookcheck.net/The-Pixel-6-Pro-may-face-supply-issues-as-Google-sets-up-waitlist-for-many-of-its-SKUs.576141.0.html