Getting annoyed to returning to my Book2 after sleeping or hibernating it, so decided to look at the battery stats, even in hibernate seems apps are still going, so resorting to shutdown every time now !!!
That said maybe it is that ***** WebEx.
For info i followed some advice i found which was remove as many of the Samsung apps, but also switch off Microsoft Edge performance settings, did that drain in hibernate over 8hrs was 0%