Some cats just like the floor. Not all cats like being on squishy surfaces either. Mine hates the bed whenever we stay somewhere with a western bed, but if I put a food tray I got for a $1 from goodwill next to me you can bet his ass will be there lol.
Jackson Galaxy Cat Daddy says some cats are tree cats and others are bush dwellers. So if cat prefers the floor I suggest fancy rugs and cat beds and cat scratchers all on the floor.
Mine refuses to use a cat tree. I always heard cats like to be high up, but not mine. He likes his bed on the floor, and rarely gets on a chair or couch if I'm not there.