black screen and froze UI in android AR app with scripting backend il2cpp build

I'm developing AR basic visor that allows doing some image tracking. I have URP correctly set up, the ARcore is on at XR plug-in manager, and I've been following every tutorial on the internet about ar foundation.

the build works fine until I change the scripting backend from mono to il2cpp. technically unity builds the app "Successfully"; however the ar camera renders a black screen and my UI is not responsive anymore. I think that the issue is more related to the architectures ARM64 and ARMv7, or code stripping?.

have someone built and upload a working AR app built in Unity to the play store after August 2021? if so, How you did it?

I'm using Unity 2020.3.25 AR Foundation 4.1.7