Nomination of an Arab country for the anticipated meeting between Putin and Trump: Why an Arab country and what is the upcoming agenda?

Why an Arab country? And the UAE is at the forefront.
The UAE maintains balanced relations with both Moscow and Washington, playing a mediating role in contentious issues (such as Ukraine and Yemen). It is also a safe destination for secret meetings, as previously occurred in the Taliban and Afghanistan talks.
Putin explicitly indicated that the UAE is a "suitable place" during his reception of Sheikh Mohammed bin Zayed, reflecting Russian confidence in the UAE's role. In addition to the UAE's status as a "global mediator," and with the failure of European initiatives (such as the efforts of France and Germany), the US and Russia may attempt to reach a formula for sharing influence in Ukraine, away from the European Union.
As for oil and the economic conflict, coordinating on oil prices may be one of the hidden objectives, especially with Russia's concern about declining revenues due to sanctions, and America's worry about rising prices before elections. The UAE, as a member of "OPEC+", may be used as a bridge to resolve disputes over production.
Among the possible scenarios for the meeting, a limited agreement on Ukraine may be summarized in a temporary ceasefire, or a deal for prisoner and gas exchanges, but achieving a significant breakthrough is unlikely without Ukraine's prior approval.
The anticipated meeting is not just a routine gathering, but an attempt by the two powers to rearrange priorities away from traditional allies. The choice of an Arab country underscores the rise of the Arab role as a mediator in international conflicts.