The panelizing of the walls should be carefully thought out during the design process. How far are you into the design process?

Were just starting!! we have floorplan done as well as flooring, kitchen and bathrooms. were coming to the end doing the wall trim! any thoughts?

IMO picture frame molding on walls is very Traditional and NOT Modern.

Batten strips mounted on the walls horizontally are a modern take on the traditional picture framemolding.

https://www.makinghomebase.com/diy-board-and-batten-accent-wall/

For "modern" skip the trim and invest in stunning modern art.

None of the photos you show say "modern" to me and some of them loudly scream "hotel/apartment hallway" and "hotel suite".

If you do decide you want the moldings, then I would not do this on every wall like a hotel. Also think very carefully about having the molding and placing art within them.

"...before committing our whole house to it...."

Don't commit your whole house to one type of trim. Trim selection should take into account the function of the room, the overall style of the house, budget, and a host of other factors.

Every version is traditional and not modern at all.

My thought is hopefully you have a competent architect so this can be avoided.

No trim or at least none of the ones you show. I agree some fabulous modern art extra large piese are musch mpre modern looking than any of those trims

Personally, my greatest objection to wall moulding or panelization of wall is that it inhibits the flexible display of wall art.

My first wife is an artist. In the house we owned we installed, in most every room, picture rail moulding to hang art from. The art changes monthly and sometimes daily, and the walls were saved from the need of patching nail holes.

The wall moulding gives an interesting look, but I favor art.

The Modern aesthetic is about the lack of ornamentation, not the addition of it. The removal of ornamentation, not the adding of it. Zero base and crown, not large moldings. The overly fussy panel molding shown in those pics has a lot in common with the 70’s ”Mediterranean” look that was a riff on the 30’s Hollywood Regency that was in turn inspired by the original of them all, the genuine LouisXIV creation of Versailles. That type of design is all about excess, not restraint.

Perhaps you need to rethink your design style influences, or your verbiage in expressing them. If you want a layered and visually complex home, a Victorian type of sensibility in creating it may come closer to the verbal description. But that involved actual mahogany wood paneling of the spaces, real marble floors, and lots of other luxurious authentic finishes from exotic locations that colonialism brought back to the empire.

Your architrct should have a good grounding in historical design styles. What type of trimwork are they suggesting to go with the overall style of the home? Is the home itself Modern? Because the interior and exterior should belong to each other, and be a holistic creation.