XCode: How to resize views, buttons depending on the screen size of the device?

My app contains several view controllers. I have used auto layout to add constraints to my labels, views and buttons. This is how one of the screens looks like on iPhone X.

How it looks like on iPhone X

How the sam screen looks like on iPhone 8

How it looks like on iPhone 8

As you can see, the disclaimer text in the iPhone 8 image is not fully showing.
How would I get it to show on iPhone 8, iPhone SE, etc?
Thank you