iOS 13 has bricked my brand new iPhone X

I received a brand new iPhone X yesterday from Apple under my AppleCare plan. Obviously needed to upgrade it to iOS 13 from what it was currently running, which I don’t recall now. It’s has been sitting with a white background and black apple icon for over 12, yes I said twelve, hours. The black line going across to show download progress was slowly trekking across underneath the apple icon all night and now day. I think there might be a minuscule amount of the download line that has not completed. My eyes are not that good to say for absolute certainty. It has been plugged in the entire time and on a fast WiFi. I will be 100% honest here, I did think maybe it was stuck and so attempted to restart and try again tonight so I could at least have access to my phone during the day, but it would not turn off. Should I let it continue in this state? Is it still actually downloading? And if I am to force a restart , what is the best way? All of my backups are in the cloud, not on my Mac in iTunes.