Does my Thai friend need to hire an agency for his visa application to Sweden, and what are the processes involved?

A user seeks advice on whether their Thai friend, who is applying for a 20-day visit visa to Sweden, should hire an agency to assist with the application. They mention that the friend works for a well-paid company and have prepared an invitation letter along with other necessary documents. Concerns regarding travel to Bangkok for interviews and the overall visa process are also discussed. Comments suggest sticking to the embassy for accurate guidance, engaging with specific groups for targeted advice, and noting the importance of VFS for visa processing.