When I export a FCPX project 1920×1080 that contain clips 4K, the file mp4 or ProRes is a little bit blurry and not well define. The same result if I send project rendering to Compressor. If I make the same thing with Motion 5 the quality is better and the image is more clear and sharp. Has anyone noticed this? I invite you to take a test.
I did the same test with both Imac Pro and Mac Book Pro M1 Max and I got the same result. I am using FCPX 10.6.2 the project is 1920×1080, the file in the timeline is ProRes 4K I export an mp4 or a ProRes in 1920×1080 and the image is as if it were not very detailed