As this answer points out, any human would first freeze rather than experience the heat death. However, assuming hypothetically that we could make some robot live at such low temperature (or even considering a theoretical observer whose perception rate depends on the speed of processes taking place inside its "body"), how the heat death would look like from its perspective?
For example, if we could say that movie characters perceive things, playing using half speed is slow for us, but from their perspective everything behaves normally. We could pause the movie and then make it play again and they wouldn't even notice.
Is the heat death in any way similar? Or perhaps no such robot is possible because its components would dissolve first, hence, no (in a way) conscious process is able to observe their own heat death?
(I was trying searching here and elsewhere, but nothing came up. It's possible that I've used wrong search terms, in which case I would appreciate someone pointing me to the correct ones.)
Edit: For clarification, I'm interested most in what is observed as heat death happens (for example, just an $\varepsilon$ before it). After the heat death happens, as the name suggest, the universe has died, so no robot can do anything.
To use the movie example, suppose that we were to put a speedometer (displays a the current playing speed) inside the movie world which could be read by the characters. Then, if we were to play a movie slower and slower until stop, after the movie is paused the characters cannot move or do anything, in particular they cannot see the reading of the speedometer (similarly the robot cannot do anything interesting after the heat death). On the other hand, just before the stop their world would not be different from their perspective, only that the speedometer would read close to zero.