@Jay ****
You can read everything in Thai law, nowhere is mentioned that remote work or work for non-Thai companies is not seen as work for this law.
Also no explicit exceptions are mentioned, so you can even argue about the situation with DTV workcation.
Nowhere is explicitly mentioned you are allowed to work in Labour Act., but the fact that for the visa an official royal approved requirement for a remote job is published, can be seen as an implicit exception on Labour Act.
All of this is highly theoretical, because since many years nobody in Thailand has any problems with remote jobs, as long as you not get involved with Thai companies and customers.