Questioning the question mark

Every Wednesday morning for the last 4 years I've been logging my husband into ZOOM for his men's Bible study, but I have to write down the password. It's only 6 numbers, but for some reason it just doesn't come to mind. Yet on Wednesday I remembered my locker code for MMHS, Mt. Morris High School, which has been closed for years. The mind is a strange and wonderful thing. I wonder what else will pop up. I also wonder why that last sentence didn't need a question mark, because Facebook corrected it. So, I asked and Copilot told me "I wonder" questions are indirect and don't need a question mark. Did we learn that at MMHS? I've been doing it wrong all these years.