Starting with the iOS and iPadOS 16.4 beta, Apple Developer Program members will see a new option to enable developer betas directly from the software update in Settings. This new option will be automatically enabled on devices already enrolled in the program that upgrade to the latest beta version. Your iPhone or iPad must be signed in with the same Apple ID that you used to sign up for the Apple Developer Program to see this option in Settings. In future releases of iOS and iPadOS, this new setting will be the way to enable developer betas, and configuration profiles will no longer grant access. - Apple
There will be no more profiles... If you want a beta, pay $99.