Why can't I see comments about my QQ friends?

It may be that my friend has turned on the dynamic permissions of my friends, so I can't see the comments of my QQ friends. Method for opening permissions; Take the operation of OPPO mobile phone as an example:

1. First, click QQ on the mobile phone page and log in, as shown in the following figure.

2. Then click my avatar on the QQ message page, as shown in the figure below.

3. Then click Settings, as shown in the figure below.

4. click privacy, as shown in the figure below.

5, click on the friend dynamic permissions settings, as shown in the figure below.

6. Click who can leave me a message, as shown in the figure below.

7. Finally, you can see that some friends have this function, which means that friends can't see their comments unless they have selected themselves, as shown in the figure below.