Just adding a link to this Microsoft blog post I previously linked to, and especially the video in it.
Wanted to capture two screenshots from there.
This is how enrollment works for Android phones
And this is how it works for Android AOSP
This puts into pictures what I saw in the logs in the previous posts. ☺️
The Company Portal app is no more. Instead, what it used to do (register in Entra and enroll in Intune) is now done by the Teams app (which is made up of the new Authenticator app and something called an AOSP app).
Here is a comparison of the username password flow between Android and Android AOSP based on my testing past few days
| Android | Android AOSP |
 |
 |
Feel free to ignore the comments as I copy pasted from the previous posts, key thing is what apps and resources are in play.