check out Chamchuri Square, Bangkok where I went earlier and spoke with the staff. I was explicitly told that they do not do 90 day reports for DTV holders. They do 90 day reports for other visa types. Others can confirm so I would suggest refrain from commenting with inaccurate information.
it should be much easier for you at Krabi. My point is that I went to an immigration office to complete a 90-day report but I was told because it is under the category of DTV I need to go to a different office.
Actually it does matter that you're on a DTV. I just posted this an hour ago and this is my experience - but in Bangkok although I usually also live on Ko Lanta.
If you exited Thailand without a reentry stamp your Ed visa will be automatically canceled.
Also the embassy would not issue you a DTV while having a current active Ed Visa. You can't have two separate active visas on the same passport at the same time from what I understand.
I acquired DTV via soft power option. One month bank statement showing closing balance above 500k bhat was the only financial document required.
There is a lot more uncertainty/vagueness/inconsistency with required documents for digital nomads/remote workers/freelancers especially between embassies. It's understandable if the embassy declines otherwise if one is working on a prior education visa. Maybe someone else can advise you.
Jakarta. I wanted to do it in person to avoid any online complications/delay. If you want to do the same your options are Jakarta also (before they go online in 2 weeks) or else Taipei. All the other consulates have since gone online - I assume partly because of the demand for this visa.
the OP is asking for advice on the easiest approval method. Soft power applications such as with Muay Thai documents appear to be more straight forward and less likely to be asked for additional documents provided from a credible legitimate source. There are less variables open to interpretation.
Also there is nothing in the future to prevent using DTV for the workcation route or vice versa from what I understand once DTV is approved. This is another reason why this visa is a fantastic option for many.