iphone 11 won't shut down and apps won't open

Hey there,

try again force restart your iPhone:

Press and quickly release the volume up button, press and quickly release the volume down button, then press and hold the side button. When the Apple logo appears, release the button.

If that doesn’t work See this article ☞ If your iPhone won't turn on or is frozen - Apple Support

How do you shut down (not restart) an iPhone 11 with a cracked screen?

Mine is doing the same thing and the recommended steps don’t work (tried several times). Did you find an answer to this question?