The sets are beautiful, but in this season some of the lens choices have resulted in so much CA/distortion outside the focus that you miss out on seeing them properly - to point of frustration. Possibly not noticeable at HD, but glaring in 4K.
Just conjecture, but this might also be what Apple does with a lot of their TV+ series that are filmed for Immersive / Spatial Video (shot stereoscopically and end up in MV-HEVC format). On a regular screen it ends up looking like a super weird bokeh towards the edges of the image.
There are certain things that simply look better at lower resolutions (and vice versa)