Anonymous participant No idea. There is no universal guidance and each Embassy has their own interpretation and quirks. Probably even down to the reviewer too. The first person reviewing documents will not be a MFA but rather a "Local hire" that all embassies have. Different ones will ask for different things. One application may sail through while an identical one gets asked for more documents.
Anonymous participant As above I think it is for 180 days. KL has been asking this from the beginning. The workaround for the guy who posted recently (Austrian Embassy I think it was) was to say initial stay was for 1 month rather than 180 days.
As for international schools the fees are only the beginning. I used to work for a large Japanese company here. All the Expats kids, Japanese and others, were sent to NIST in Bangkok. Fees were covered but extracurricular activities and trips were not. They soon mounted up. I can remember a Japanese Finance Director telling us over beers how much it was costing him for 2 daughters. The costs for presents for birthday parties almost weekly were not cheap. My best pal has had his kids in international schools all over the world as a senior Diplomat. He also talks of the extra costs involved on top of the fees.
Have a look through past posts. Some International Schools will not take kids on a DTV. They need to change to an Ed. As for public schools my mates 15 year old just started Thai public school after moving here recently from UK. She has dual citizenship though so it was easy. She seems to be enjoying it and has made friends very quickly. In the case of younger kids there is a Farang family on TikTok where the young kids go to a Thai public school and they seem to be enjoying it and thriving.