Go into your battery usage and see what's draining it. In my case it's mlp. If that's the case try this... Image attached. You need to find both mlp and gallery stories in the system apps and disable those in my view. Since they seem to be linked up. Make sure you disable and force stop where you can. You can change the battery usage to restricted too. See attachments
do you perhaps have any idea when this will become available? I see posts like these that suggest the android 12 update happened way before it was available for me, which was only a few days ago. I can't wait for a patch.