Who I have the same questioned this topic

I have 3 Verizon Samsung S7 Edge (SM-G935V, my wife and I each daily use ours and I have a 3rd device for testing purposes) and 1 Verizon S7 (SM-G930V, my mom's) that are all suffering from severe battery drain and performance issues.  Let me start by stating that this trouble did not exist on the first iteration of Verizon's Oreo (Android 8.0) update, but has been broken, fixed, and then broken again during subsequent updates.  I have tried factory data resets, debloating the preinstalled software, and used the battery saver settings (lowered resolution down to HD, "Optimized" phone in device manager, changed "Performance Mode").

All 4 of these devices are in perfect working order with healthy batteries, never rooted or modded, never opened or tampered with, and have the latest and official Verizon (forced I might add) software update; Build # R16NW.G935VVRS8CRK2 (for the Edge phones).  None show abnormal battery utilization, or rogue apps (remember, all 4 of these devices have different apps running including my test S7E that has every app possible disabled, including system apps).

Also, the battery utilization never matches the usage, for instance, my phone was just fully charged, screen on time (SOT) is 13 minutes and I have 79% left on my battery.  Total usage per the battery monitor is 14% between the various systems which means the phone cannot account for 7% of usage.  Before this issue, I could go all day and still have 40%+ left on my battery, now I end up with less than 15% in 8 hours with almost no usage.

I have so much more to type, but no time right now.  Please Verizon, let me know what can be done to resolve this issue.  Thank you,

Matt