Go to Settings -> General -> VPN & Device Management -> Remove the Profile listed

You cannot remove Device Management if your device says Managed by a certain organisation in Settings app on top of all preferences.

Hi, Is there any possible way we can install enrolment provisioning profile using iOS app using User/Account Authentication Enrolment such as described in this thread: https://developer.apple.com/documentation/devicemanagement/implementing-the-oauth2-authentication-user-enrollment-flow