I would not use any gray. Choose something closer to the floor color.

It pulls more green/gray in certain lights. I worry there's just too much white/off white if the wall, cabinets and floor are a creamy color. No? I would like for it to blend with the living room. See picture (obviously we just moved. 😂). Again, more renovation coming (since I know everyone will tell me change the lighting first, just slapping on some paint I enjoy for now).

living room

The magnetic gray is pulling more blue in the kitchen and more green in the living room (which is more like what I want) If I leave the magnetic gray in the living room, would it look better to do a color like accessible beige on the kitchen walls.and paint the cabinets a whiter white? I feel like crying... I have NO idea what to do!

No, it does not. No grey with those countertops.

No gray will work in your kitchen. Try an off white color. Leave the cabinets, just give them a good cleaning. They arent the problem. Trying to put a color in that doesnt go with anything else is the problem. Tans, creams, etc if you want a neutral. Personally, I would go with a light green, a light blue, or a light green blue, or some other actual color.

How about going more blue? There are some lovely soft blues with either a grey or taupe tinge to them.

Do not do this now if it’s more than you can chew.
Don’t stress over it. It’ll look fine.
What about just slapping a peel and stick tile for now? Or living with it until you can redo.