What are the various ways I can store the application data?

Question
1

What are the various ways I can store the AppGyver application data?
Is it possible to save AppGyver application data in an Excel or List in SharePoint?

2

You can store data on Firestone (well integrated with AppGyver)), xano, baserow, google sheets,… And AppGyver now provides a backend which I believe includes data storage but you have to register for the BTP version I think.