A bored cat is a jumping cat. They will look at the ceiling fan and think, "I could totally land on that." You must become a one-cat circus. Use puzzle feeders that force them to roll a ball for treats. Or offer a low-to-the-ground wand toy that just skims the floor. No overhead lasers. Lasers create dreams of flight.
I once hid catnip under a rug to keep my cat sniffing for hours. She forgot about her grand plan to summit the refrigerator. Sometimes, you have to drug them with boredom—but the legal, herbal kind. Try a Feliway diffuser. It releases calming pheromones that make your cat feels like it’s in a spa, not a prison.