I have the same issue. I used to “bypass” my Wi-Fi problem by switching to cellular data. However, after the 14.2 I HAVE NO CELLULAR DATA AT ALL. I tried to chat with some Apple agents, but I always end up with nothing since my connection drops every 5 mins or so. I used to have iPhone XS before the iOS 14, and thanks to that wonderful update(s), I have a very expensive iPod Nano now. Thanks Apple!