Updating for 0/7/24: How to generate a CSV including cleaning fees:
- Navigate to your main earnings tab (The page says "You've made ___ this month" at the top)
- Scroll down to Paid section and click "show all paid"
- That will bring you to a page with a "generate CSV" option, and once you are there you can decide which fields to include, with cleaning fees being one of the fields.
This seems to be the ONLY place where you can generate a CSV - not from any other pages. Hope this helps others in the future, I had to call and talk to Airbnb support to figure this out.