I have a 2020 Camry SE and my car's battery has gone dead twice! It was driving me nuts trying to figure out why!! Both times my car went dead has been on a Monday morning. I think I have figured out the problem. If I leave the car UNLOCKED all weekend and not drive it, then on Monday morning when I get in it its dead. So something is draining the battery. Here is what I think it is...if I leave the car unlocked the display behind the steering wheel still shows the time and mileage but if I lock the car, the display goes off. So...I think the display being left on when the car is unlocked is what was draining the battery dead over the weekend.
I lock my car every time I get out now and its has been two months since my battery has gone dead.