It is a fact that Johnson hasn’t been to see the Queen to resign.
It is a fact there is no resignation letter.
It is a fact he is still living in Downing Street/Chequers.
Don’t try to belittle people because you don’t agree.
From what I've read, he doesn't need to send a resignation letter, or see the Queen (yet). He's basically announced his intention to stand down when the next Tory leader has been chosen. At that point he will go to the Queen with his letter. It's been reported that he contacted the Queen to tell her that he intended to step aside on Thursday morning, before it was publicly announced.