The lock screen won't show anything sometimes, and you can't unlock it. It's just a wallpaper. I had to enable face unlock and auto unlock in order to use the phone. It start the camera app with the power button, try to access photos frying there, and that gets the fingerprint to work and unlock it.
Oh fuck me. Given that I'm on automatic updates and the update has already been downloaded, next time I reboot my phone it will switch to Android 14 automatically. :(
If you use multiple profiles, you could potentially end up somewhere between locked out of your main account, to even soft- and hard-bricked. See siblings link from Ars.