There is no logout button

Hello everyone. I was glad when I was given the windows 10 edition of minecraft. I went to investigate it since I've always played in java edition. I have had quite a lot of achievements on my phone account and I know that I can log in to my account on the computer. But it wasn't there, I didn't find the logout button! Just my tag from the launcher!

I crossed out the extra buttons to make it clear. There is no exit button! I thought it would be and now everything will be fine. But there is no exit button!