How to handle frontend redirect URL for unity mobile Application? Oauth

I am new to strapi. I am trying to setup Oauth with Microsoft Provider for end users.
My frontend will be unity app. how to handle frontend redirect URL in unity?

System Information
  • Strapi Version: 3.6.9
  • Operating System: windows
  • Database: mongoDB
  • Node Version: 14
  • NPM Version: 8.5.5
  • Yarn Version: