What is the immigration process like for entering Thailand on a DTV visa with a new passport?

The experience of entering Thailand on a DTV visa with a new passport generally involves presenting both the new and old passports to immigration. One traveler reported being asked about the length of stay and the purpose of the DTV, which they specified as 'workcation.' It was noted that no additional documents were required, but having onward travel and accommodation details ready helped. A comment from another traveler indicated a slightly different experience where the immigration officer did not ask for the old passport or intended stay, but requested clarification on the purpose of their visit, which was also related to remote work.