I have a shallow dish for my cat and he still does this… He just doesn’t believe seeing the bottom is natural lol.
(Before anyone says anything yes the dish is flat, I bought it for my hedgehog to eat without having to clamber and then had to swap their dishes when he discovered the shallow dish was light enough for him to toss around for fun lol)
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.