Some owners' cats
He would immediately lie down and roll around on the ground whenever he saw me.
Some people think this means the cat likes them.
Ways to express love
But I'll tell you in secret.
When your cat sees you, it will "lie down and roll around"
More than just loving you

"Expressing friendliness"
Cats love to use body language to communicate with people or other cats. They are especially good at expressing friendliness. When they are not hostile to people or want to express trust, they will use their body language to express friendliness and goodwill. For example, a cat may deliberately lie on the ground and roll around to show that it is not hostile to you and wants to be friends with you.
"Request to be touched"
Sometimes, when cats roll around on the ground, it's because they're expressing their needs. They want you to pet their bellies, especially cats that have been pampered for a long time. They particularly enjoy being petted and will often roll around in front of their owners to indicate that they want to be petted. Being petted by their owners feels very comfortable and blissful.
"Feeling excited"
When a cat is excited, such as when its owner is having a great time playing with it, the cat will feel very excited. A happy cat will roll on the ground to release its excitement and express its joy.
Especially when you play with it or the cat gets excited to see you who hasn't come home, it will immediately roll around on the ground!
"To express a threat"
Sometimes, when two cats are fighting, one cat will roll on the ground and show its belly, but focus on its limbs, trying to use all four limbs to attack the other. This is the cat's way of expressing a challenge or threat; it wants to attack the other with all its might and give it a warning.
If you don't want your cats to get hurt, it's best to separate them. Fighting is not good behavior.
"To show obedience"
Sometimes, when a cat acknowledges you, it feels that you are incredibly powerful and invincible, so it will roll around on the ground to express friendliness. You can touch its belly anytime, and it will not refuse you, because it is now your little brother and will obey you instead of bothering you.
This is how your cat acknowledges you; quickly pat its belly and respond to it.

"It's hard to express myself"
Cats also have times when they are uncomfortable. If a cat is uncomfortable, it will feel very bad, such as having an upset stomach or discomfort in some part of its body. A cat in pain will roll on the ground to relieve its discomfort, which is actually a way of conveying its discomfort to its owner.
Cats are animals that can tolerate a lot of pain. If they are showing signs of pain or discomfort, then their condition is quite serious. Pet owners should pay close attention and not ignore their cat's health, and take it to the vet for a checkup.
"Invite to play"
Don't be fooled by a cat's aloof and independent demeanor. That indifferent attitude is just an act. Once you get used to them, they'll love to play with you and interact with you.
For example, when you ignore it, the cat will roll around in front of you and meow a few times. Actually, it's inviting you to play and wants you to play with it.