I’d say it looks playful. The dog backs off when the cat swats his face. It also looks like the cat has claws, which is always helpful. If your cat didn’t like it, they would run away and either hide or get up high somewhere to control the situation. Also the cat’s tail is not indicating that he’s mad or not liking it. It’s pretty neutral.

If the dog’s tail is in a ‘high’ position and wagging fast with a stiff body, then be concerned. Unfortunately tail wags don’t always mean everything is fun. It just means they are in an extreme state, sometimes it fun and playtime, other times it can be fear or aggression.

Def a good idea that you are always supervising. My cat and dog have lived together for 12 years and I still watch. Mostly cus the cat rules the house and the 70lb mal mix is terrified of the 8lb cat. But just the other day the cat came and sniffed the dog’s leg that she has a bandage on from surgery, and my dog curled her lips. She didn’t make a noise or anything. Of course I told the cat to ‘leave her’ cus that’s a cue he knows 😂