[Galaxy Tab S Q&A, Help & Troubleshooting] zork99:
Here is a list of installed APKs on SM-T700 and T800 which can be safely removed. Please let me know if there are other apps that can be removed without compromising the device or other software. The goal is to keep everything to minimum to increase performance and battery longevity. Many of the apps can be downloaded from Google Play. I will continue to update this list.

I would recommend using 'Root Explorer' and your device must be rooted for this to work. Make a backup of two folders, /system/app and /system/priv-app, to your sdcard just in case if you need to restore the deleted app.

/system/app

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AccuweatherTablet2014_BG_WQXGA_half.apk

AllShareCastPlayer.apk

AllshareControlShare.apk

AllshareFileShare.apk

AllshareFileShareClient.apk

AllshareFileShareServer.apk

AllshareMediaServer.apk

AllshareMedisShare.apk

AntHalService.apk

ANTPlusPlugins.apk

ANTRadioService.apk

BBW.apk

BCService.apk

BluetoothTest.apk

Blurb.apk

Books.apk

Bridge.apk

ChocoEUKor.apk

CoolEUKor.apk

Chrome.apk

Drive.apk

Dropbox.apk

DropboxOOBE.apk

ELMAgent.apk

Evernote.apk

EmergencyLauncher.apk

EmergencyModeService.apk

EmergencyProvider.apk

FilterInstaller.apk

FilterManaer.apk

FilterProvider.apk

Flipboard.apk

FWUpgrade.apk

GearManagerStub.apk

Gmail2.apk

GMS_Maps.apk

InteractiveTutorial.apk

KNOXAgent.apk

KnoxAttestationAgent.apk

KnoxSetupWizardClient.apk

Magazines.apk

MediaUploader.apk

MobilePrint4.apk

MobilePrintSvc_CUPS.apk

MobilePrintSvc_CUPS_Backend.apk

MobilePrintSvc_Epson.apk

MobilePrintSvc_HP.apk

MobilePrintSvc_Samsung.apk

MobilePrintSvc_WFDS.apk

MultiWindowTrayService.apk (removing this gives big performance boost but you'll lose split screen functionality)

MyMagazine.apk

NYTimes.apk

PartnerBookmarksProvider.apk

PickUpTutorial.apk

PlayGames.apk

PreloadInstaller.apk (must delete otherwise it’ll reinstall on next reboot)

QuickConnect.apk

QuickConnectInteraction.apk

Radio_1.1.180004_tabplm_RC1.apk

RCPComponents.apk

RemotePC.apk

RoseEUKor.apk

SafetyInformation.apk

SamsungAppsWidgetTablet_BannerStyle_8.apk

SamsungContentsAgent.apk

SamsungDrmProvider.apk

SamsungMusic_tablet_20.apk

SamsungSans.apk

SamsungTTS.apk

SamsungWidget_ActiveApplication.apk

SapaMonitor.apk

SBrowser.apk

SBrowserTry.apk

SecKidsModInstaller.apk

Sidesync_Player.apk

Sidesync_Source.apk

Sidesync.apk

SPenSdk3.apk

Street.apk

talkback.apk

TravelService_K.apk

UniversalMDMClient.apk

Videos.apk

WebExMeetings.apk

WebManual.apk

WfdBroker.apk

WlanTest.apk

YouTube_5.7.38.apk

/system/priv-app

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AutomationTest_FB.apk

DSMForwarding.apk

DSMLawmo.apk

FotaClient.apk

KLMSAgent.apk

HancomOffice_Shared.apk

HancomUpdater.apk

hanviewerlauncher.apk

hanwidget.apk

hcellviewer.apk

hshowviewer.apk

hwordviewer.apk

MagazineBriefingWidget.apk

MagazineLauncher.apk (you can delete this if you're using a different launcher such as Nova)

MagazineWidget.apk

Netflix.apk

NoiseField.apk

NokNok_Stub_Klimt.apk

PageBuddyNotiSvc2.apk

PersonalPageService.apk

PhaseBeam.apk

PhotoStudio_WQXGA_8.apk

SamsungApps_Tablet.apk

SamsungBilling.apk

SamsungMagazine.apk

SamsungMagazineWidget.apk

sCloudBackupApp.apk

sCloudDataRelay.apk

sCloudDataSync.apk

sCloudQuotaApp.apk

sCloudSyncCalendar.apk

sCloudSyncContacts.apk

sCloudSyncSBrowser.apk

sCloudSyncSNote3.apk

SecTabletMyFiles2.apk

SFinder.apk

SharedStorageBackup.apk

ShareVideo.apk

SNS.apk

SPDClient.apk

SPPPushClient_Prod.apk

SyncmlDM.apk

For some unknown reason, wifi's settings or password are not saved after reboot. You will need to change ro.securestorage.support=true to false in /system/build.prop for wifi to work correctly after reboot.