So your work is your work and not always a function of the camera.
As to mi 9 vs same pro, if you can't tell the difference then I and most others won't as well. A draw.
And about the best cameras today? That would be Apple's latest Pro, Huawei and Samsung's latest.
Read https://www.cnet.com/topics/phones/best-phones/camera/ and I see the Samsung slipped off the list. But there it is.
I had until recently a Xiaomi Redmi 5 and I want to replace it, I have a budget of about 300 € and I found the Xiaomi Mi 9 and Mi 9T Pro. I do not know which of the two is the best in photography despite reading many tests. I would like to know which of the two is best especially in low light or if there are better devices for nearly the same price.
Thanks in advance !