Keep in mind that if you do reset your Pixel’s mobile network setting you will lose all saved Wi-Fi passwords and Bluetooth pairings. Keep in mind that while affected Pixel devices were having issues with their data connectivity, the phones still were able to make and take phone calls.
Another possible fix is to deactivate the 4G/VoLTE calling feature by going to Settings > Network & Internet > SIMs > Provider’s name and disable Wi-Fi calling.
So at this point if your Pixel is experiencing issues with data connectivity after installing the latest security update, you can try resetting the mobile network settings or deactivate 4G/VoLTE. Let us know if either of these fixes works for you by dropping a comment in the box below.