8% per day is like a continuous 250W draw. I think you can use a thermal camera to see where it happens :) like that's a lot.

Owned a Model 3 since August 2023, didn't have any issues with it yet apart from those in place from the very beginning (left rear view mirror sometimes won't unfold or will but only partially, it takes a few cycles to get it to unfold fully, plus another small one that probably depended on use pattern and when mine adapted i can't reproduce it anymore).