16 week old puppy started barking at me for no reason?

My 16 week old golden retriever has recently started barking at me anytime I’m doing something in the kitchen longer than just a minute.

I have a pretty open floor plan and he is allowed in the kitchen/dining room/ living room as long as I’m with him to supervise his behavior. It always seems playful as he jumps up in place and barks (does NOT try biting and doesn’t jump on me per se) and never aggressive or fearful. I’ve tried to ignore the behavior, but he just continues until I leave the kitchen and throw a ball or pet him.

I originally thought it was due to me wetting his puppy food with the faucet so he thinks anytime I’m in the kitchen, he’ll receive something. I stopped wetting his food 3-4 days ago. This behavior has been going on for 3 days now and I can hardly be productive in the kitchen without putting him in his kennel for 10 minutes just to stop this barking. He gets ample play time, he’s great with kennel training, he’s plenty loved but I can’t even load the dishwasher or grab a quick drink without him doing this behavior. I havent noticed any signs of separation anxiety and he typically plays on his own or chews on a bully stick if he starts getting bored. And yes, I do play WITH him majority of the time but if I want to sit on the couch he will go play with a toy on his own.

Any tips to stop this behavior?