I have Nokia Lumia 720. I am a Windows Insider on Windows 10(PC) for new using features & bug fixes(mostly on Bash Shell). Of course we don't have official public Windows 10 update for Lumia 720. I got it with insider app now that I have got Windows 10 update, I've uninstalled Insider and I no more get Windows 10 updates on my Windows Phone. Is that the reason I don't receive updates from setting > Updates?
Should I install Insider app again to get updates? How do I check the current build on my device? What's the next best build available? What should I choose: Fast or Slow updates?