Well. That is one requirement. The other needed one would be to proof either business ownership or a remote contract abroad, or a booked soft power activity. π
For the German consulate it isnβt the decisive factor what visa one is on, but rather whether people still have a registered residence in Germany or not. But yes, if it were to matter I am sure they would see the DTV as long term.
That is why I also shared the published law both in its Thai original and an English translation for convenience. So people in doubt don't have to rely on illustrations alone, but can dive deeper into the facts. π
Does NOT need to be on a Thai account. Certainly needed when applying for the visa. Might also still be needed when extending a stay or when re-entering Thailand. Would only consider the DTV is I know I can always demonstrate sufficient funds.
Sadly, there aren't any reports of success stories of this available at this point that I came across. Sponsor means that someone else guarantees that he will cover your expenses in lieu of you yourself having to demonstrate at least 500k THB in savings - could be your employer or relatives, maybe. We just don't know at this point. Also what will be accepted for this will be decided by the respective Thai consulate in your jurisdiction - and quite likely different consulates will have different requirement son this.
I am sure he could find a "source". The problem is, that many false and irritating articles and illustrations have been circulating before the DTV came into actual law. Sadly, most people trust information too easily without questioning the validity of the source or understanding the hierarchy that of information sources. That is why it is such a mess right now to "convince" people again and again that they should only believe the facts now.
Nobody can know at this point. There is hardly anyone who even entered once with the DTV at this point in time, let alone somebody already trying to switch from DTV to another visa. And on a separate note: I hardly see any reason to get the Elite visa anymore - especially with both the LTR and the DTV in place now.
More aspects will be determined based on this distinction by the way, e.g. if one can get a 5 year regular Thai driving license instead of just the 2 year probational licenses again and again.