I am on a 2018 MBP with i9/32GB/1TB that I got a few days ago. I was on a video call (camera, screen share, and MBP speakers) for around two hours today. I started with 100% battery and ended up with 89% even though the MBP was plugged in all this time. CPU usage wasn't significant during this time, but even if it was, battery drain still doesn't make sense. I haven't noticed this in the past few days, and I did upgrade to the Supplemental Upgrade 2 that was release yesterday. Below are a few pictures of the iStat Menus graphs for some more data. I haven't had a chance to try a heavy workload since then so I will try that once I get some time. Has anyone else experienced this? Any thoughts on what might be going on here? Am I really somehow taxing this thing more than what it was designed for?