Update.... First off I was incorrect that the issue was only occurring when on 5G. The unit gets hot anytime the browser is being used, apps are being updated, or the camera is being used. Today I did all three at the same time and the phone was extremely hot. I contacted Apple and after some diagnostics they stated they would need to physically inspect the phone. An appointment was setup for me to go in to have the phone looked at. Today Apple contacted me and stated they want to forgo me taking the phone into Apple and instead they want to send my a replacement and have me send the defective unit back t o Apple. I really don't have a root cause to share just some updated info for those interested.