A permission may have been useful during a particular task, such as attaching a photograph or joining an event. Later, the setting can remain even when the application is used for something else.

Use the device’s documented controls to review access for one application. Ask whether the current scope still fits its purpose. A smaller selection or an on-demand choice may be available, depending on the tool and operating system.

Check the ordinary task after making a change. If a feature needs access again, use that moment to consider the request in context. A manageable review is easier to maintain than trying to understand every setting at once.

An example to consider.

Consider an application no longer used for a project. Its old permissions deserve attention even if the shortcut has already left the home screen.

Put it in perspective.

A preference is personal, but its effects may reach other people. Consider the next reader or device before making a convenient setting the default.
A few starting points
  1. Review access for one application.
  2. Match scope with current use.
  3. Check the familiar task after changing a setting.

Follow a related question

Assign colors to clear roles.

A palette with a few clear roles

Keep learning

Related background to continue exploring this subject.

Mozilla: backing up and restoring browser data W3C: web accessibility
Make room for ideas