Please clarify "Depending on permissions, not all extras can be restored."

### Please check before submitting an issue

- [x] I know what my device, OS and App Manager versions are
- [x] I know how to take logs
- [x] I know that generating a report, in whole part or in part, using AI/LLM is prohibited
- [x] I know how to reproduce the issue which may not be specific to my device

### Describe the bug

In Backup/Restore options, some items have a warning: "Depending on permissions, not all extras can be restored." However, AM never explains what this actually means.

What permissions does it depend on? Does it mean that depending on AppManager's own permissions, it may not be capable of restoring an app's extras? Or does it mean that depending on an app's permissions, the app's extras may not be fully restored? How would the user know which extras might be affected by this limitation?

### To Reproduce

Use AppManager

### Expected behavior

UI and documentation should be clear, not confusing.

### Screenshots

_No response_

### Logs

_No response_

### Device info

- all devices

### Additional context

_No response_