Alongside iOS 17.2.1, Apple today released iOS 16.7.4 and iPadOS 16.7.4 updates that fix an issue with built-in apps. In some cases, if a user deleted a built-in Apple app on a device running iOS or iPadOS 16.7.3 or earlier, the app would not be able to be reinstalled.
From Apple's release notes for the update:
While we haven't heard many complaints about the issue, that is likely because the majority of users have transitioned over to iOS 17. For those who are having a problem with reinstalling a deleted app in iOS 16 or iPadOS 16, the new update will address the problem.This update fixes an issue where built-in Apple apps that may have been deleted may not reinstall.
Apple's iOS 17.2.1 update also included bug fixes, but Apple did not provide specific details.
Article Link: iOS 16.7.4 Update Fixes Issue That Prevented Built-In Apps From Being Reinstalled