Intune ZT enrollment - No virtual keyboard

Hello,

I have different feedbacks where the virtual keyboard is not appearing at the Intune login page during a ZT enrollment, has anyone experienced the same issue and knows how to fix it please?

Environment:

- Android tablets running Android 13

- COPE mode

- Google Gboard installed and setup as default input method

- Zero Touch enrollment

- After the enrollment start and goes to the Login to Microsoft account step, the virtual keyboard is not appearing when touching the fields

Some leads: 

- Gboard is not allowed by default and got disabled during the enrollment?

- Non system or protected apps (flags to add in the software?) got removed when starting the enrollment?

Thanks!