it depends on which DLT your visiting,…and who sits I front of on the day.
I have 3 times went for a 2 years renewal,…where they denied me,…1 time in Tallingchan Bkk and 2 times in Chang Wattana,…so I went to Siratchar, Chonburi and here was no problem,…for the time being.
not tru,…you need an international driving license issued in you home country,…it’s not 100 % sure the DLT will allow you to get a Thai “ Driving License “ if you arrived on a tourist visa,….