What is my Operating System?

[Greenhill]

If I go to system information on my phone, settings (Xiamo mi 10 lite 5g)

It shows two Operating Systems: 

Android 12

and 

MIUI 12.1.2

This is very confusing. How do I know which I got? And how does this MIUI thing affect my ability to get Stadia Support, functionality and updates and fixes and stuff like that?

[rickytenzer]

Android 12 doesn't exist yet, only Android 11. You are running a non-stock version of Android, MIUI 12.1.2 made by Xiaomi. From my research, this is based on Android 11. Xiaomi takes the Android source code and modifies it to their liking to make their MIUI. 

As for support, if you can download the app on your phone from the Play Store,.you should be able to get support and that means the app is certified for your phone. 

[Greenhill]

Thanks, this helps me understand it allot more now.

Is it possible to install android 11 on my phone? IF so, how?

This MIUI makes many apps not function correctly. But if the phone wont work without, im gonna need to buy a new phone.