I’m gonna stick my neck out and give another prediction on how this will go:
At 23:59:59 GMT the website will suddenly burst in to life. People will be able to upload their visa document (it’s no the same as uploading on the COE site before). They will be able to upload their passport page (No, not really the same as the COE process at all). They will be able to also upload their Covid health insurance certificate (And no, it’s not anything like the COE uploads). They can then provide details of their hotel (I know what you are thinking, but it’s not the same). Finally they can upload details of their flight (ok, I’m not going to say this again. It is NOT the same as the COE). After a delay, you will be presented with a QR code that you can download to your phone (See. Nothing like the COE. Although I would also print off the QR code document just in case).
Simple you see and nothing remotely like the COE process. If you live in Thailand you had better stand clear. The tourists are coming by the millions.