I accidently uploaded a picture with my order number to a discord server with many people in it, if someone were to have gotten my order number, is there any issues I can face and am i screwed???
If you purchased the GPU from the AMD Store online, AMD Store does have some security about who can look at your Order Number.
Here is AMD Store Order Number lookup webpage: https://shop.amd.com/store/amd/DisplayCustomerServiceOrderSearchPage
So unless the person who is trying to look up your Order at AMD Store will have to know either the Password, Email Account, or last 4 digits of your Credit card to get access to the information in your order.