Originally Posted by irishguy28

All of KLM's flights to Hong Kong, Jakarta, Kuala Lumpur, Manila and Taipei currently operate via Bangkok, and will do so until early January, according to current schedules.

I don't know what the "transit arrangements" are, but you are clearly over-thinking this. KLM would not be offering flights from Amsterdam to each of Hong Kong, Jakarta, Kuala Lumpur, Manila and Taipei that can only be booked and travelled by Thai customers. KLM is not (despite routing all these flights for a limited time through BKK) focusing exclusively on the Thai traveller.

My guess is that you don't leave the plane, or that if you must, you don't leave a specific holding area and never actually enter Thailand.

Originally Posted by Goldorak

to know if people disembark or not in BKK, you should check how long is the transit time in BKK. If more than 60-90 min, I am pretty sure that pax disembark and stay in the waiting area at the gate in the international zone (possibly clearing security in between, as it was usually done in BKK before Covid - don't know if it has changed or not). If people disembark, aircraft get cleaned, catered and refueled + crew change.