Kasicorn bank is the easiest. SCB can be very touchy! SCB refused me even though I had proof of ownership of 4 properties! Just need cash and passport. Better still, take a Thai person.
I've just done 2 months in Thailand. Be aware once you clear customs. It's a nightmare! Waiting for the transport to the quarantine hotel! It's complete chaos! Be ready to sit around for an hour or so. Immigration and customs was easy. I was thru in 5 mins. Any other questions. Just message me and I'll help if I can. Safe travels. 🙏
On the 7th day I sent a follow up email with relevant details and told them I'd wasted an hour and a half on hold on the phone lines. 2 hrs later I got accepted and QR code.