The main meal is always the first meal served even with slightly strange departure times like this so a full dinner will be available then breakfast before landing. You will be able to avail yourself of the full F dining & drinking experience although as most of the cabin will probably want to sleep on a relatively short sector at this time the lights will probably be dimmed & service delivered relatively quietly.
Having said all that, Dubai is a leisure dominated route as opposed to eg. NYC so crew will be expecting passengers to want to enjoy the experience fully.