Yes I am having the same issue with my LG g6.  I have had it for about 5 months now and I drop calls with in my house at my old apartment which I moved out of recently and even with the advanced Wi-Fi calling on it does not make reception any better.  If my Droid Turbo hadn't broke the power button I would still be using it because I had awesome reception with it.  I too am a long time Verizon customer (over 15 years) and am sad that you know there is an issue with the phone yet offer nothing other than to buy another one of your products to help boost its signal.