[Samsung Galaxy S5 Neo Questions & Answers] Neoony:
This is all that I have safely disabled. (frozen or uninstalled)

But also contains some basic apps that I have replacement for.

Done over titanium backup.

Frozen:

AllShare FileShare Service 2.5 (com.samsung.android.allshare.service.fileshare)
Backup and restore 5.1.11.Z (com.samsung.android.scloud.backup)
Backup and Restore Manager 501.150652 (com.wssnps)
BBCAgent 2.0 (com.samsung.android.bbc.bbcagent)
BeaconManager 2.0.4621747 (com.samsung.android.beaconmanager)
Calculator 4.0.633652 (com.sec.android.app.popupcalculator)
Chrome 43.0.2357.93 (com.android.chrome)
com.sec.android.app.chromecustomizations 1.0 (com.sec.android.app.chromecustomizations)
com.sec.android.ofviewer 1.91 (com.sec.android.ofviewer)
com.sec.enterprise.knox.attestation 1.0.1 (com.sec.enterprise.knox.attestation)
ELM Agent 15235 (com.sec.esdk.elm)
Email 2.1.0.730754 (com.samsung.android.email.widget)
Email 2.1.0.730754 (com.samsung.android.email.ui)
Email composer 2.1.0.730754 (com.samsung.android.email.composer)
Email storage 2.1.0.730754 (com.samsung.android.email.provider)
Email sync 2.1.0.730754 (com.samsung.android.email.sync)
Enhanced features 1.0.2 (com.samsung.android.coreapps)
Fingerprints 1.1.0 (com.samsung.android.fingerprint.service)
Gallery 1.22.1.1507.201 (com.sec.android.gallery3d)
Google App 5.5.29.19.arm (com.google.android.googlequicksearchbox)
Google Play Movies & TV 3.9.23 (com.google.android.videos)
Google Play Music 6.1.2116T.2441907 (com.google.android.music)
Hangouts 6.0.107278502 (com.google.android.talk)
Internet 3.3.38.63-0_100501_676375 (com.sec.android.app.sbrowser)
KLMS Agent 2.5.281 (com.samsung.klmsagent)
KNOX 2.3.1 (com.sec.knox.bridge)
KNOX 2.3.0 (com.sec.knox.switchknoxI)
KNOX II 2.3.0 (com.sec.knox.switchknoxII)
KNOX SetupWizardClient 2.3.0 (com.sec.knox.knoxsetupwizardclient)
KnoxFolderContainer 2.4.0 (com.sec.knox.foldercontainer)
Launcher 1.0.646168.2015071016 (com.sec.android.emergencylauncher)
Memo 2.0.711693 (com.samsung.android.app.memo)
Messages 1.0.1 (com.android.mms)
Music 6.0.1507121538 (com.sec.android.app.music)
Nearby Service 2.2 (com.samsung.android.allshare.service.mediashare)
New registration 1.4.30 (com.sec.enterprise.knox.cloudmdm.smdms)
OneDrive 3.6 (com.microsoft.skydrive)
OneNote 15.1.6330.4427 (com.microsoft.office.onenote)
PageBuddyNotiSvc 1.0 (com.sec.android.pagebuddynotisvc)
Photos 1.10.0.109224489 (com.google.android.apps.photos)
RCPComponents 1.0 (com.samsung.knox.rcp.components)
S Beam 2.5.0 (com.sec.android.directshare)
S Finder 3.000 (com.samsung.android.app.galaxyfinder)
S Planner 3.1.1.15073119 (com.android.calendar)
S Planner 3.1.4.15071314 (com.sec.android.widgetapp.SPlannerAppWidget)
S Voice 11.9.0.0 (com.vlingo.midas)
Samsung Cloud Data Relay 3.06.011 (com.samsung.android.scloud.auth)
Samsung Cloud Quota 1.8.16 (com.samsung.android.scloud.quota)
Samsung keyboard 4.0 (com.sec.android.inputmethod)
Samsung MirrorLink 1.1 1.1.2.21.621293 (com.samsung.android.app.mirrorlink)
Samsung Push Service 1.4.4 (com.sec.spp.push)
SapaMonitor 2.0.42 (com.samsung.android.sdk.professionalaudio.utility.jammonitor)
SecurityLogAgent 4.1.4 (com.samsung.android.securitylogagent)
Skype 2.3.534.19822 (com.skype.raider)
Tags 1.0.01 (com.android.apps.tag)
TouchWiz easy home 1.0 (com.sec.android.app.easylauncher)
TouchWiz home 4.0 (com.sec.android.app.launcher)
Video 2.0.0 (com.samsung.android.video)
Voice Recorder 3.02.07241540 (com.sec.android.app.voicenote)
Weather 150717.669008 (com.sec.android.widgetapp.ap.hero.accuweather)
Weather Daemon 150715.657778 (com.sec.android.daemonapp)

Uninstalled:

com.samsung.android.bbc.fileprovider (com.samsung.android.bbc.fileprovider)
com.samsung.knox.knoxtrustagent (com.samsung.knox.knoxtrustagent)
com.samsung.knox.kss (com.samsung.knox.kss)
com.sec.knox.containeragent2 (com.sec.knox.containeragent2)
com.sec.knox.packageverifier (com.sec.knox.packageverifier)
com.sec.knox.shortcutsms (com.sec.knox.shortcutsms)
com.sec.knox.switcher (com.sec.knox.switcher)

There is definitely more.

I was just disabling by the eye.

Didnt go VERY much into details.

(some of the uninstalled apps were already shown uninstalled the first time I opened titanium backup. Not sure why. You might not have some of them.)

If you are not sure about disabling something, just copy paste it into google and there will most probably be some info.