Question about Samsung Galaxy S20 FE 5G

I read a lot here, but I'm too lazy to read 500 reviews. Here's my question: How long does the battery REALLY last, with moderate use (I'm one who only uses the phone on the toilet and in bed), and is it waterproof? I probably could have saved my question by reading the reviews, but like I said, I'm too lazy. Forgive me. Thank you.