How do I see all my open pages on my 14?

Go to the bottom of the screen after unlocking the phone, then swipe upwards slowly and stop around the middle of the screen and you will see all the apps that are suspended, and you can swipe across to see them all, or you can swipe individual apps upwards if it is necessary to force one closed if it is not working correctly. Otherwise, it is not necessary to force an app closed.

I think you are asking about viewing the Quick Launch screen. Swipe up from the bottom of the screen and pause half way.

GigiMM ~

Gesture, swipe, and press to navigate your iPhone 13 and other Face ID models

...Found by searching Apple's Knowledge Base.

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