It's easy to overfeed cats when we dont understand what they want because food works temporarily for most "asks". It's almost never food they actually need, usually it's some sort of stimulation like playing and hunting. Try playing more with him! Especially the part about him biting your hand when you pet him means he's activated and needs an outlet for his energy. When you pet a cat, the rougher you pet and the bigger the area, the more energy you put into the cat - eventually it'll overflow. Small scratches, and soft small pets on a small area works better to calm them. Even just putting your hand on them kinda heavy and barely moving it.

Different cats like different plays, but for almost all cats it's best to put most toys away and bring them out when you play actively with them. Rolling balls or scrunched up paper, wand toys, ribbons... try different toys, and try getting the cat to move around, jump up and down furniture, roll, pounce etc. If playing with a laser, point it at a pile of food or candy occasionally and at the end of play so they can successfully "catch" something, otherwise an unwatchable dot will only build frustration.

Scratching serves both to stretch, file claws , and to scent mark. Put scratching posts and mats in the area next to the furniture he wants to scratch, so you can redirect by putting him, or his paws (or luring him there with wand toys) on the scratching place when he starts scratching furniture.

Impossible to be angry at such epitome of cuteness.

Since posting this I started to think more about what was actually happening.

So basically he only acts strange when I sit in a particular spot in the hoose.

I ruled out all of the basic needs so unless it's something medical it doesn't seem to be related to a need.

Thus I have to consider the area itself. I think he simply doesn't want me to be there.

I then considered why. What type of activities did I engage in when I sat at my desk?

One of the activities that I only engage in at my desk is attend work meetings.

I wonder if that is the cause. He doesn't like it when he hears the voices of strangers. Furthermore I've observed him getting annoyed whenever I'm on the phone with anyone, even off loud speaker.

This is my best theory so far.

One thing I've found to work is keeping a string (hoodie cord work great just snip the ends off) coiled up on the desk. They walk in wanting attention and you toss an end at them etc. and they rawr and attack. See if that's what the lil guy wants.

I've also had tremendous luck with the circular cardboard "dish" shaped (concave) scratchers, a modern take on the classic cardboard scratcher. Somehow the act of scratching it then curling up for a nap in it appeals to the cats. Both are snoozing in them as I type 😺

The biting probably just means overstimulation/showing affection. Cats are basically autistic.