How to classify the apps on Xiaomi's mobile phone? Specific steps?

If it is an Android phone, use software such as App Bao.

File management on the internet is to manage mobile phones.

Or is it better to classify the things on the mobile phone than the above?

It is much more stable.

Install this software on your mobile phone, and you can see it by opening file management.

All the files on the mobile phone.

It is much more convenient to sort it out and display it on the mobile phone.