After updating to iOS 17.6.1 most apps won‘t work on my iPhone 13 Pro

After updating to 17.6.1 most apps won‘t work on my iPhone 13 Pro. Restart as well as de- and re-installing did not help. This is highly annoying, this expensive phone now feels totall useless - does Apple care about this? Do they know and are they working on a fix?

[Re-Titled by Moderator]