support.apple.com/phone/restore
I am unable to restore my phone after following teh directions to hold down the top button and home button together.
iPhone 8 Plus, iOS 15
It shows you selected for an iPhone 8, those aren’t the steps the article lists for you to follow.
Instead: iPhone 8 or later: Press and quickly release the volume up button. Press and quickly release the volume down button. Press and hold the side button until you see the Apple logo.