Xamarin.Essentials Preferences and Export Compliance

Before I can publish my app with TestFlight I have to answer questions about my use of encryption. I don't use any encryption that I am aware of except for maybe Xamarin.Essentials Preferences.

Does Xamarin..Essentials Preferences use Encryption?

I'm aware that you can add the following to you Info.plist so it wont ask:

<key>ITSAppUsesNonExemptEncryption</key>
<false/>

However I'm not sure if the encryption Xamarin.Essentials Preference uses is exempt or not.

I also wondered if you can turn off encryption in Xamarin.Essentials Preferences (if it is encrypted) as I really don't need it to be encrypted.