I’m unsure what is meant by “square click”.
Can you post a screenshot?
Here is how to get a screenshot: Take a screenshot on iPhone - Apple Support
When this “square click” next happens, capture and post a screenshot here.
If there’s anything sensitive in the background of the screenshot, edit or clip that before posting.
If the footer is correct, your iPhone 11 should be running iOS 17.4.1, too. Not iOS 16.
Here is how to: Update your iPhone or iPad - Apple Support
And what to do: If your iPhone or iPad won't update - Apple Support