Other than Sumsub, UAE ID can also be verified via their Official Website.
Instructions
Step 1: Visit the ID Card Status page on the ICA Website https://icp.gov.ae/
Step 2: Enter the ID number in the enquiry box
If the ID card is valid - it will show the below pop-up message:
If the ID card is invalid (i.e. potentially fake/forged) - then it will just show "...please wait"
Alternatively, you can also check the ID's history log (from application, request, to print etc.)
https://smartservices.icp.gov.ae/echannels/web/client/default.html#/login