Why do this? It will only make the kitchen look smaller. We once combined two bedrooms. We had to add a support beam to replace the supporting wall. To make that less obvious, we added two false beams, evenly spaced across the room(s). That home had 8-foot ceilings.

Natalie, I don’t know if this will help or not. We put a copper ceiling in the library above the living room. We too had a chandelier hanging From the flat area on the ceiling. There was no way that copper was going to work on the flat area so we ended up using strips of wood the length of the ceiling and then just cutting around where the chandelier would be and then putting the chandelier faceplate back up.

Wanted to replace the cross tees and tiles in my basement but ran into an issue. The cross tees do not fit my old beams. Do they still make theses cross tees or is there anything I could do? 4 images in the imgur link below. https://imgur.com/a/XiqSk83

Size is one thing, the way the beam is located or utilized can telegraph that it is fake. A true structural beam rarely looks fake. A fake beam does not look real unless it mocks a real beam in every way. Make it look like it is supporting whatever is above it, and not like a bump on the ceiling.