I'm not Z6 expert and yes most likely it's just a strong AA filter you see.I don't know how the lenses behave stopping down etc re moving the focus plane, to me the landscape image looks like the focus plane is way to much in the front of the image,,,CaptureOne is very good with Moire and purple fringing! better than Adobe.
I set ACR to remove chromatic abrasions, that's why i'm so surprised by the result,,,