Letter recommender hasn't responded to request and has conference deadline coming up. Should I remind them?
You sent the request last Friday. It is now Wednesday, i.e., the third working day after the request. That is not a lot of time at all, in the calendar of a professor. Moreover, the deadline is on December 1, which is still almost four weeks away.
Give the professor at least one more week. Maybe then send a reminder, and mention the deadline in that reminder.