13 Pro, no difference in battery life for me. Home & Lock Screen only used 2% battery on the current cycle, I have the dynamic weather wallpaper and two complications (weather & calendar) on my lock screen, dynamic weather also for my home screen. Background activity for Weather was 8% (6 min), Calendar didn't even register for battery usage.
I'm seeing more discharge than usual, but it's because I've been using the phone a lot more - playing with settings, tweaking things, switching back and forth between wallpapers, updating apps, etc. I expected it and it's not out of line with what I normally see from my phone.