I don't know if this makes sense but the camera of one plus 5 deterioted with time. When I bought it the camera was good but now it became below average.
The color saturation was never really good but after using it for 1.5 years every color captured by the phone looks like shades of grey.
All other things are there as specified. Performance, battery is superb.
I heard that the issue with the camera is happening for other one plus users who has 5T and 6.
Please write back if you had similar experience.