Is this closet wall load bearing

Probably not load bearing. Looks like roof load is on closet back wall (is that an exterior wall)? To be doubly sure, I always go to attic and look to see if there's any roof trussing sitting on top of the wall you're removing. Measure downstairs for landmarks (for reference points) when you're up there. Good luck, demo is FUN!

I’m glad “you’re going to consult a professional.”

I’m sure he’ll check: 1) that all the trusses are identical, including the connectors, 2) there are no additional loads on the trusses over the kitchen area, like air conditioner, etc., 3) the floor beam is just for floor loading, (the wall does not need to sit directly over the beam in order to transfer the roof load to the floor beam, 4) the wall that is being removed is not for lateral bracing (are you in a high seismic or wind zone), 5) the perimeter footings are not reduced in size by the kitchen area,

Btw, it’s not just removing the wall...you’ll need to remove/reroute plumbing, electrical, hvac, etc. too.