Wifi disconnects after installing iOS 14.0.1

The WiFi ISSUE.. Apple does not want to admit there is a issue with the WiFi.. I spent6 hours Sept 29th on the phone to Apple .. they had me reset my iPhone XR to original settings and still have issue .. Any suggestions ?? Router has been tested , my Internet provider was tested .. it’s ONLY my cell phone won’t connect ..

I have the Iphone XR and I have problems with the wifi. At times my cell phone does not open the internet and the music apps like Pandora, Spotify, YouTube etc. say they do not have an internet connection. I have to turn my cell phone off and on, sometimes it works but sometimes it doesn’t. At first I thought there were problems in my cell phone company, but at home there are 4 more iPhones and nobody has this problem.  I hope you can solve this soon because it is very frustrating. 

Reset Network Settings in settings- general - reset. You will need to rejoin your network