Apple

I bought my M1 Macbook Air 8GB this weekend and today I used it for the first time for coding. It was only to learn SwiftUI and it took about 2 hours. It wasn't performance demanding thing just tested layouts and stuff. After 2 hours I picked the macbook up and it was really really hot on the bottom like burning hot. I didn't use any emulator and stuff just preview on the side. And the battery kinda drained it was 83% when I started and it was at 30% after 2 hours. I used it on my large mousepad. Is it possible that my mousepad prevented air flow and thats what heated up the thing or is this normal to heat up like this or do i have to contact for apple for a warranty? Should I be worried about the battery performance and heating?