I do not know who picked my profile picture at chat gpt and how can i change that? couldnt find any account setting to change picture
It’s indeed something that one might wish away - to have your identity splattered all over a screenshot.
Either the picture was taken from your use of a social authentication method to log in when you created your account, or it is created from your name or email address.
Either version can be block by uBlock origin, just block all of Gravatar and never see any of their “letter” icons.
What I see after my existing block: