After discussing with my dealer, he mentioned that Nissan provides a VIN before shipping from Japan. So you should be able to track both where your car is and the vessel.
I got VIN number and Vessel ( after asking few times ) in April, arrived 2 weeks ago ... receiving it hopefully tomorrow.
IN similar fashion Toyota that has huge delays on deliveries ( They gave me 18 months when i asked back in 11/2022 for a RAV4 ) ....the VIN is allocated upon a arrival at the destination port.
S