We have sent unaccompanied baggage (to the UK) twice from Qatar and it's much cheaper than accompanied baggage.
We didn't even have to fly the same airline as the baggage.
The second time and unknown to us, the items were on the same flight as we were.
I assume the same would apply between Qatar and the UAE.
We also sent furniture and other effects by road from Abu Dhabi to Qatar at a very economical rate and have used GAC to move large items from Qatar to the UK with no problems