The only task left delaying production start is the customer Cybertruck pen order. You get one pen with purchase. Honest.
Tesla appears to be on pace with limited CT production this year. Unless there is a major external event, new highly infectious Covid variant, another supply chain bubble, civil war, I do not see any reason not to start limited production this year.
Grain of salt, I am not in the know. I consider the above a conservative estimate.