3. Earlier, my paper was listed under MoB16 on October 6. What does this session assignment mean for a virtual paper? Do I need to be available at that specific time?

No. You do not need to be available at the assigned session time. All virtual sessions are asynchronous and are not synchronized with a specific time slot. The virtual papers are organized into six virtual sessions for program organization purposes. You are not required to present your paper or participate in a Q&A session in real time.