No application icons in the limits management for my child (on my MacBook Air)

Hello, my child has an iPhone 14. I want to manage his time limits from my MacBook Air (I don't have an iPhone).

I have access to his settings. But one point really bothers me regarding usability: the apps installed by my son don't display their icon. All have a purple "hourglass" icon and text.

For example :

• com.google.chrome.ios for the Chrome app
• com.IndexEdication.Pronote
• ... and this is the case for all apps, regardless of the category (games, social networks, etc.).

This is very annoying and makes it difficult to identify apps at a glance.

What is the explanation? How can I fix this problem (restarting the devices does not resolve it).

Thank you in advance for your help.