[Verizon LG G3] roirraW "edor" ehT:
You're probably right, it was probably debloated. You haven't implemented the further debloat "switch" mentioned in the OP, right? If so, undo that and check. I'm not on this ROM at the moment although it's overall my favorite ROM.

On stock 47A with maximum debloat but still have QuickCircle case option. I checked my Google Sheets I use to do the work of figuring out what can be debloated, etc, and no particular apk jumped out at me. Admittedly I'm mobile at the moment, but I couldn't find it searching for "Quick" or "Circle".

Sorry mate. Hang in there, though. Maybe someone else will have an idea or I'll get a closer look at the stock apps...

Edit: the following are all the apks in the completely stock 35B if you'd like to look in the meantime.

AmazonAppstore.apk
AmazonAudible.apk
AmazonIMDb.apk
AmazonKindle.apk
AmazonMobile.apk
AmazonMP3.apk
AmazonWidget.apk
appdirectedsmspermission.apk
AppRecovery.apk
atfwd.apk
BackupRestoreConfirmation.apk
BoardContentProvider.apk
Books.apk
BrowserProviderProxy.apk
CaptivePortalLogin.apk
CertInstaller.apk
Chrome.apk
CloudPrint.apk
CNEService.apk
com.gotv.nflgamecenter.us.lite.apk
com.lge.shutdownmonitor.apk
com.qualcomm.location.apk
com.qualcomm.qti.services.secureui.apk
com.verizon.mips.adpt.apk
ConfigUpdater.apk
DefaultContainerService.apk
DocumentsUI.apk
Drive.apk
DrmService.apk
ECID.apk
elt_test.apk
embms.apk
embms_vzw_q_l.apk
FaceLock.apk
FontServer.apk
FusedLocation.apk
Gmail2.apk
GmsCore.apk
GnssAirTest.apk
GnssLogCat.apk
GnssPosTest.apk
GnssTest.apk
GoogleBackupTransport.apk
GoogleCalendarSyncAdapter.apk
GoogleContactsSyncAdapter.apk
GoogleFeedback.apk
GoogleLoginService.apk
GoogleOneTimeInitializer.apk
GooglePartnerSetup.apk
GoogleServicesFramework.apk
GoogleTTS.apk
Hangouts.apk
HomeSelector.apk
HotspotProvision.apk
HTMLViewer.apk
Ims.apk
ImsVT.apk
InputDevices.apk
IPsecService.apk
KeyChain.apk
LGActionManager.apk
LGAlarmClock.apk
LGApduService.apk
LGATCMDService.apk
LGBackup.apk
LGBluetooth4.apk
LGCalculator.apk
LGCalendar.apk
LGCalendarProvider.apk
LGCameraApp.apk
LGCMAS.apk
LGConciergeBoard.apk
LGConnectionWizard.apk
LGContacts.apk
LGContactsProvider.apk
LGCover.apk
LGDivXDRM.apk
LGDMSClient.apk
LGDMWebViewer.apk
LGDownloadProvider.apk
LGDownloadProviderUi.apk
LGDrm.apk
LGEasyHome.apk
LGEasySettings.apk
LGEIME.apk
LGEIME_DICT_XT9_bin.apk
LGEIME_THEME_BLACK3.apk
LGEmail.apk
LGExternalStorageProvider.apk
LGFavoriteContactsWidget.apk
LGFileManager.apk
LGFormManager.apk
LGFOTA.apk
LGGallery.apk
LGGestureAnswering.apk
LGHome.apk
LGHome_Theme_Optimus.apk
LGInCallUI.apk
LGLIA.apk
LGLiveWallpapersPicker.apk
LGLockScreenSettings.apk
LGLTECall.apk
LGLW_MultiPhoto.apk
LGMediaProvider.apk
LGMusic.apk
LGMusicWidget.apk
LGMyGuide.apk
LGMyWellness.apk
LGNetworkSettings.apk
LgNfc.apk
LGNLPService.apk
LGPartnerBookmarksProvider.apk
LGPCSuite.apk
LGPrivacylock.apk
LGQMemoplus.apk
LGQRemote.apk
LGQVoiceplus.apk
LGSearchWidgetProvider.apk
LGSettings.apk
LGSettingsAccessibility.apk
LGSettingsProvider.apk
LGSmartcardService.apk
LGSpringCleaning.apk
LGStk.apk
LGSystemServer.apk
LGSystemUI.apk
LGSystemUI_Provider.apk
LGTasks.apk
LGTelecom.apk
LGTeleService.apk
LGTextLink.apk
LGTextLinkAgent.apk
LGTextLinkEngine.apk
LGThinkFreeViewer.apk
LGTouchControlAreas.apk
LGTTS.apk
LGTTSPAService.apk
LGUSMms.apk
LGUSTelephonyProvider.apk
LGVidClip.apk
LGVideo.apk
LGVoiceCommand.apk
LGVoiceCommandService.apk
LGVoiceRecorder.apk
LGVZWAppStartupwizard.apk
LGVZWHelp.apk
LGVZWStartupwizard.apk
LGWeather.apk
LGWeatherService.apk
LGWeatherTheme.apk
LGWernickeManager.apk
LIAInformant.apk
LIAMrGDBLogger.apk
LIAS4URecommender.apk
LicenseProvider.apk
LocationAgent.apk
Maluuba_QVoice.apk
ManagedProvisioning.apk
Maps.apk
MmsService.apk
MobileHotspot.apk
Music2.apk
MyInfozone.apk
MyVerizon.apk
MyVerizonService.apk
Newsstand.apk
OBDM_Permissions.apk
PackageInstaller.apk
PacProcessor.apk
Phonesky.apk
PlayGames.apk
PlusOne.apk
PrintSpooler.apk
ProxyHandler.apk
qcrilmsgtunnel.apk
qospermission.apk
QuicksetSDK.apk
securesettingspermission.apk
servicemenu.apk
SetupWizard.apk
SharedStorageBackup.apk
Shell.apk
SlackerRadio.apk
SmartShare.apk
SmartShareDLNA.apk
SmartShareProvider.apk
SplitWindowService.apk
SSO_P3.apk
ssopermission.apk
SVIService.apk
TagGoogle.apk
talkback.apk
TimeService.apk
UnifiedEULA.apk
UserDictionaryProvider.apk
Velvet.apk
VerizonFamilyBase.apk
VerizonHiddenMenu.apk
VerizonIgnite.apk
Videos.apk
VpnClient_3.0.1_LG.apk
VpnDialogs.apk
VVM.apk
VZCloud.apk
VZMessages.apk
VZMobileSecurity.apk
VZNavigator.apk
VZWAPNLib.apk
vzwapnpermission.apk
VZWAPNService.apk
VZWAVS.apk
VzWSMSFilter.apk
WallpaperCropper.apk
WapService.apk
WebViewGoogle.apk
WfdService.apk
WfdsSendService.apk
WiseScreen.apk
WVTest.apk
YouTube.apk