dinodiniYou could try a restart of your phone. Might fix it. If not, please make a screen recording where you show that you've grated all the necessary permissions, that you have unread messages and that the counter is still not showing.
Please tell us some basic information before asking for help:
Model Name: Asus Zenfone 7 Pro
Firmware Version: WW_126.96.36.199
Rooted or not: Not Rooted
Frequency of Occurrence: Permanent
APP Name & APP Version (If your issue relates to the app):
In addition to information above, please also provide as much details as you can, e.g., using scenario, what troubleshooting you've already done, screenshot, etc.
I activated the bage count function by opening the start screen settings -> Preferences
I activated the function for only showing the number of unread messages. I than activated the checkbox for the gmail app and the system told me I had to give the ASUS Launcher App permission for "contacts" and "Access to email information". After giving the Asus launcher that permissions I was able to activate the checkbox for the gmail app. But when I got a new email there is no badge count in the right corner of the gmail app.
When I activate the function the show the notification count (not only to show the unread messages) the badge count for the gmail App icon is working.
Zenfone 7 Pro - No Gmail badge count for unread messages