I would mostly say episodic and semantic memory, processing speed and the ability to focus on a single task for long periods all reduced

I can relate to this

It's been only two months for me. Focusing on a task was hard for the first few weeks but is nearly fine now. I can work on something for as long as baby lets me. Episodic memory is down but I was attributing that to lack of sleep and am still hoping it'll come back eventually