I've noticed that sometimes my cat will meow from the other room so I'll answer asking what's up, making sure to say his name, and he's usually content with that unless he approaches me. 🤷♂️
Yeah object permanence is not strong with mine either. She'll go into another room, forget I exist, scream, I respond, she's like, "Oh hey, you're right where I left you!"
my cat loses it if she wakes up and can't see me.
I live in a studio. there aren't a lot of "out of sight" options. at one point, there was just a screen between me, in my computer chair, and her, on the bed. we still did the whole call and response.
she doesn't look for me, she just starts yelling until I respond.