From the video description:

"This music video was produced using traditional methods, with real actors and several days of filming at LAMY Studios, supported by TRIMARAN VFX, which provided over 20,000 hours of rendering. The elements of the universe, imagined by Seth Ickerman, were modeled and animated in 3D using classic techniques, as part of a project that spanned more than a year and a half.

Although artificial intelligence now plays an increasingly important role in many productions, its use in this project remained limited, mainly to automate certain repetitive technical tasks or make minor adjustments to details. Even in these specific cases, the AI was systematically reworked so as never to compromise the overall artistic coherence. Contrary to popular belief, its contribution here remains very limited and marginal in relation to the project as a whole." Seth Ickerman.

I agree with you the art-direction of this video is a sensory overload. I think this was a conscious choice of the director.