Unable to install dev profile on iPhone XR

I tried to install the developer profile, i had the option to install it where VPN and Device management is, and a restart was required. I am still not able to install the update as I have tried to force restart and it is not letting me update as in the software update settings it only tells me I am up to dat (iOS 16.5) I am on an iPhone XR

Have you tried logging into the Apple Developer Center?