Cats are much more intelligent than people give them criteria for, but the things my cats are smart about are so unpredictable.
Like, ours will get lost in our own house sometimes, but he understands how the doorknob works. He can’t use the doorknob, but he tries. He’s also very trainable, as long as it’s to do sobering and not to not do something.
He’s kind of an idiot, but the things he’s clever at are genuinely clever (they mostly revolve around being an asshole to the other cat)