According to the accommodation list, can I only go through customs alone?

Yes Customs won't check it. If you need to register several people's certificates when you register, you can also call the hotel reservation website and add another person's name to the remarks. It should be noted that according to the exit rules, if an outbound passenger carries the following items, he should truthfully fill them in the corresponding columns of the customs declaration form, and hand them over to the customs for verification and go through the relevant formalities.