The Google Pixel 3 and 3 XL's progress toward official release is gathering speed. Following their application to the FCC, they have now been sighted on the website of the Taiwanese NCC. However, this new documentation is relatively low on new details about the phones.
https://www.notebookcheck.net/Pixel-3-and-3-XL-make-it-through-Taiwanese-certification-process.328718.0.html