I've had two Pixels and so has my wife and both phones have data/connection issues. My signal strength is about 10 points weaker when HD voice is enabled as opposed to when I go through My Verizon and disable it from my account. I know others have this issue and I am wondering when Google/Verizon will send an update?
It's a strange issue. It doesn't happen everywhere. A few location around town but my house it one location which sucks.