I just described the particular situation. Coz there were contradicting advice. And no, my friend doesn’t plan to work in Thailand in the future. He may arrive on a tourist visa though.
Hi everyone, here’s the update. Thanks to the moderators for reopening the post. Hope they will not block me in the group for this update ;))
But my friend successfully passed the passport control without any overstay payment. No one asked any question. I learned that his colleague was in a similar situation 6 months ago, and also successfully exited the country without any fine. Well, we don’t know what may happen if they try to enter the country again in the future, but for now everything was smooth.