Greyed-out apps after updating from App Store in iPadOS 26.1

Greyed-out apps: iPadOS 26.1 bug, or something else?

Following the upgrade to iPadOS 26.1 on my iPad Pro 11" (4th generation), many of the apps are greyed out AFTER updating from the app store. Each app updates (Waiting... Loading... Installing...) and ends up "greyed-out". It cannot be opened with a single tap, but the menus work with a long press, and each app can be opened in other ways (e.g. from the App Store), and seems to be fully functional in every other respect.

[Re-Titled by Moderator]

Original Title: Updated apps greyed out