Apple Developer - What is the 'Fonts' Capability under Register an App ID for?

Question

I need to register an App ID in my Apple Developer account and saw under the \'Capabilities\' section \'Fonts\'. Which I found on means \'Fonts: Font Installation allows you

Answer 1

Since iOS 13, apps can make use of a Fonts entitlement, with a sub option 'Use Installed Fonts' to use custom fonts installed by special font provider apps. Font provider apps make use of the same entitlement, but with sub option 'Install Fonts'. Examples of such apps are CreativeCloud from Adobe and MyFonts from MonoType.

You only need to add the Fonts entitlement to your app, if you want to use fonts installed by said font provider apps, or if you are developing a font provider app yourself.