Yes, still have the blu-ray box set, which I will keep, because I will never, ever buy the prequels again. As we know, 4K doesn't matter with the PT.
It does though. Of course the PT will never look as good as Dunkirk but there's no question that they are very noticeably better on 4K than those 2011 blu-rays. The resolution is upscaled but more than that it's all about the HDR.