How does Xiaomi mobile phone delete software data?

Model brands: Huawei p40pro, iPhone 12, Xiaomi11; System: emui 1 1, ios 14, MIUI 12.5.

1. First of all, the data of mobile phone software can be deleted, and deleting data has no effect on the mobile phone.

2. For an application, clearing the data of the software means clearing the data of the application, which is equivalent to reinstalling the program and will clear all the used data information in the application.