I also have a bank already, but bank and driving license is a good litmus test whether this is treated as a tourist or non-immigrant visa. I will try myself next month too.
Thanks for the report. I encourage you to try and get a Thai bank account in a random bank. Will they provide it, or won't? I think it's very important.
whatever things people did before was on a reason of tourism. This is essentially different because it's written in the royal gazette that remote work while living in Thailand is allowed for freelancers, nomads, and etc. That means the future border runs or flight runs are actually free without cost of bureaucracy. Most young remote workers I know travel abroad at least twice a year. So to that visa holder, it's no cost.
I see why you draw parallels with the METV, and I know there's no point debating this because no one really knows it yet.
But I want to point out "is not meant to establish residency in Thailand" isn't based on any fact. We will need to wait and see if visa holders can open bank accounts, apply visas from Thailand, get practical tax resident status, etc.