If everything was exactly the same there wouldn't be a difference in the builds. Whether or not the changes are noticeable or meaningful is a somewhat different and separate question.Ok apple was wrong what ever it is but there was zero changes on iPhone 6-11 in terms of bug fixes or changes.... you had to remove RC profile to get public update. Before when you had dev profile before when they called it GM we would go from dev to GM and GM would be the same as public. Now RC is frozen last build with no further changes to dev/beta users.
if you install RC or public release you don’t get any fixes or changes under the hood ZERO