I don't think oil competition as UAE stands to gain by being out of OPEC controls when the other countries stay in. So when oil is restricted to raise or maintain prices, UAE is free to produce more to take advantage of the price control.
I think it's more about sucking up to Trump aligning with the US as per post by @RedTagAlan re 2025 agreement.
My thoughts on the Iran war was always that it would make the GCC reassess their reliance on the US for defence, after seeing how easy it was for Iran to attack them. So pull back or conversely, go all in.
The UAE could have done a deal with India as Saudi did, except that there were already reservations expressed in India about being drawn into ME politics.