Many designers advise moldings, it's quite fashionable now. What can you say about it?

Personally, I'm against it. Molding is an eternal struggle with dust, because they (as well as baseboards), especially if they are wide, like a magnet attracts dust, you get tired of cleaning them

On the contrary, I'm for it. If you apply the molding correctly, it will visually increase the space, emphasize the design and give the room expression. Try to read tips on how to apply it, for example https://homeconstants.com/blog/will-crown-molding-make-room-look-smaller/ , I think that immediately abandon the idea is not worth it. And about the dust, so it will collect in any case, still clean it, I do not understand the excitement on this subject.