FWIW just departed via DMK T1 (International). 10 minute queue for bag drop and then immigration was about the quietest I've ever seen it - empty counters for both Thai and foreigners. Parking was an absolute bitch though.
TLDR : Answer Summary
The conversation discusses the experiences of traveling through DMK International Airport during the low season, highlighting a quick bag drop and minimal waiting at immigration. There is a mention of parking difficulties, as well as notes about the timing concerns for a flight to HCMC.