Did my interview today and was approved!! I honestly did very little prep, I used the 'Citizen Now' app to practice for the civics test but that was it. They only asked for my appointment confirmation letter, drivers license, passport, and green card. No other documents were requested. They asked me 5 of the civics questions, then asked me to read a sentence out loud and write a sentence into an iPad, they might have gone easy here because I am an English speaker. But it was pretty simple, once I was approved they asked if I'd like to do the oath ceremony at the same time, I did that also today and got my naturalization certificate.
There was a big line outside the building, but after asking some people I realized that was for ICE registration, USCIS can go straight in.
Let me know if you have any questions and good luck!!