We can include the custom downloadable fonts in the android app which are provided by Google only.

Please see the below screenshot

Noto Color Emoji Compat is the only font by Google that supports Emojis and is updated from time to time. So I guess we can use only this font.

I couldn’t find any other service provider which provides the following details related to font:

1. fontProviderAuthority such as com.google.android.gms.fonts
2. fontProviderPackage such as com.google.android.gms
3. fontProviderQuery such as Noto Color Emoji Compat
4. fontProviderCerts

If we have these details from the font service provider then I think we can use different fonts. So if you know any that service provider please let me know and I will try to use their font in the App.

By the way, this is a nice question.

Thanks.