I have a Google Home and a Pixel 2. I didn't have problems until we added two Google Home Minis. It's knocked out 5G on the Verizon Quantum Gateway router and 2.4G drops out every now and then.
I'm having the same issue. Just bought a Google Home in December and my Verizon quantum router has been dropping repeatedly. I've had a Chromecast and Nexus 6P for years and never had any issues with it. I'm glad I finally discovered the issue, thanks to this article!