Auto install to 26.2 will not complete....?

My wife's iphone 14 has downloaded the update to 26.2 but will not install it automatically at night and I don't see a manual option to force it immediately. She said this notice has been going on for several days. I have gone into general settings and see the update notification, but when I go in to the settings it doesn't show an option to "update now" only the option to turn auto update off or on.