Level of Detail should always stay off, if on, even if you set character and foliage LOD at max it will show near objects like trees, plants and so on at low detail and increase as you get closer. This was pretty noticeable in Pirates of the Caribbean and Tangled worlds.

Motion Blur during gameplay can be enabled through mods

Textures: Max (As high as your VRAM allows)

Shadows: High

Level of Detail (LOD): Off

Character LOD: Max (affects LOD of NPCs, in case of setting LOD On set it at medium)

Foliage LOD: Max (didn't spot a difference while setting LOD On)

Anti-aliasing (AA): Personal preference, I prefer crispy graphics, so I set it off

Motion Blur: Personal preference (only applies to cutscenes)

Ambient Occlusion: Medium

Capsule Shadows: Medium

Screen Space Reflections: High

Volumetric Clouds: Medium

Volumetric Fog: Low

Bloom: High (affects Lens Flare quality)

Lens Flare: On

Depth of Field: Personal preference (applies to cutscenes, set it at high)

Same as Quality Optimized but...

Ambient Occlusion: Low

Capsule Shadows: Off

This quality is achieved using mods

I made this mod myself. It improves LOD distance, increases Reflections quality, enables motion blur option outside cutscenes and fixes some artifacts present in game: https://www.nexusmods.com/kingdomhearts3/mods/2160