Crab, octopi, and humans exhibt cephalization
A jellyfish (and MAGA cultists), not so much.
But even jellyfish have sensory organs. Eye "spots" that allow them to sense light and even see prey. A mouth to consume with.
I think it likely any alien life would have sensory organs for sight, smell, sound, taste, touch, even if they are much different from ours, as is the case with many other species on earth.