So I updated my iphone 11 to ios 14.2 and lately it's been draining the battery faster. I haven't been using it any different than before. I know my usage is different as well because my screen time is down 35% so how am I using more battery?
More than likely you have an app installed that may not be fully compatible with the updated iOS version. Can you see which app is using the battery? Have you rebooted your iPhone since the update?