How can I apply for a multiple entry 6-month tourist visa to Thailand from Germany and what is the timeline for approval?

The user is inquiring about the process for obtaining a multiple entry and 6-month tourist visa to Thailand from Germany. They express concerns about booking a return ticket without being guaranteed the visa approval within the expected time frame. Comments indicate that such visas should be applied for in the applicant's home country or where they have legal residence, and that a 60-day multi-entry visa is available but online applications do not cover a 6-month duration.