IOS 14.0.1 On iPhone 11 Pro Max Freezing/Unresponsive

Hello,

I just purchased an iPhone 11 Pro Max a week ago. I installed the update as I set up my phone. I’m trying to determine if the issues I’m having are related to the update or if I should swap my phone out with my provider before my 30 day window for return is up.

My issue: My phone is extremely laggy, apps freeze constantly, anytime I am trying to do multiple things at one time (play music and send a text for example) my phone completely freezes up and is unresponsive (none of the buttons or anything on the touch screen works) which lasts several up to 5 minutes before it finally starts working again and as recent as this morning, my camera is just a black screen. Trying to take pictures of my child before school on the day of his birthday and all I get is a black camera screen.

Can someone please tell me if I should swap my phone out with my provider? Or is this a result of bugs in the most recent IOS update?