@John *********
in my case, I took the documents to the office for verification and was informed to make an appointment to return a few days later. I was provided the QR code.
I took the online course (Half of the videos was in Thai language). and pass the 5 question quiz.
On my appointment date I took the vision and three other agility test, (very easy).
I was there about 2 hours.
I have a Thai DL.