Question: is there a log somewhwere of app activity and/or battery
usage? I've tried the usual "power-saving-hints", but my phone still
currently burns 9% battery per day sitting there doing nothing. I've
set it to charge only to 80%.

I used ADB to list off all apps. Here are some "suspects". Do they
look OK to disable/remove? In each line, the part after ".apk=" is the
binary name...

/system/priv-app/ThemeCenter/ThemeCenter.apk=com.samsung.android.themecenter
/data/app/~~6wjNW-N3BXtq5kUbcvP4ug==/com.google.android.youtube-0KqjaLbDbIVzMc-SGyG8cw==/base.apk=com.google.android.youtube
/prism/app/SamsungMax/SamsungMax.apk=com.opera.max.oem
/product/app/com.google.mainline.telemetry/com.google.mainline.telemetry.apk=com.google.mainline.telemetry
/system/app/FBAppManager_NS/FBAppManager_NS.apk=com.facebook.appmanager
/system/priv-app/ThemeStore/ThemeStore.apk=com.samsung.android.themestore
/system/priv-app/FBServices/FBServices.apk=com.facebook.services
/system/priv-app/AutoDoodle/AutoDoodle.apk=com.sec.android.autodoodle.service
/product/app/com.google.mainline.adservices/com.google.mainline.adservices.apk=com.google.mainline.adservices
/data/app/~~ZfNe1khhJSmx8GvA7-Rexw==/com.microsoft.skydrive-qhOF895MgSCCkxJO12ColQ==/base.apk=com.microsoft.skydrive
/data/app/~~97Riw5i8JjNl_m4tY3-rVQ==/com.google.android.partnersetup-V2hMeFfaO-1e4dDE2FKEew==/base.apk=com.google.android.partnersetup

/system/system_ext/priv-app/WallpaperCropper/WallpaperCropper.apk=com.android.wallpapercropper
/system/priv-app/SpriteWallpaper/SpriteWallpaper.apk=com.samsung.android.wallpaper.live
/system/priv-app/wallpaper-res/wallpaper-res.apk=com.samsung.android.wallpaper.res
/system/priv-app/LiveWallpapersPicker/LiveWallpapersPicker.apk=com.android.wallpaper.livepicker
/system/app/WallpaperBackup/WallpaperBackup.apk=com.android.wallpaperbackup


--
Walter Dnes <waltdnes@???>
There are 2 types of people in this world
1) Those who can extrapolate from incomplete data