Does the Android application for Teams use an in-app browser?

I have an application for Teams that works fine when I use browsers: Chrome, Firefox... and with the Desktop application for Teams.

On the other hand If I try to use this application in my mobile with the Android application for Teams, in this case is not working.

In this application I'm using a indexedDB and I think that this is the problem. I would like to know whether the Android application for Teams is using an in-app browser or another type of in-app browser for Android.

During my researchers I have found this about indexedDB and the Android browsers

How can I check the version of my Android Browser?

Could you help me with this problem?

I have more information in this post: https://techcommunity.microsoft.com/t5/microsoft-teams/indexeddb-is-not-working-in-the-android-app-for-teams/m-p/1359784#M56703

Regards