For most UAE operators, yes — if a meaningful share of your orders comes through Talabat, Deliveroo or similar, you do not want staff re-keying every order into the till by hand. That is slow and it introduces errors that corrupt your sales and inventory data. Aggregator integration keeps the channels in one system so your reporting reflects reality, but confirm exactly which platforms and which integration method a POS supports before you commit.
From Choosing a POS System for a Dubai Restaurant: What Actually Matters — the full reading, with the method behind this answer.