[Android Q&A, Help & Troubleshooting] JLowe:
Debloating the Device privacy friendly

You restored your Firmware and have the latest Chinese Firmware 6.09.06 without Google Playstore installed

The Sim-Card isn't attached to the device

You're offline, no WiFi

You're rooted with Magisk Manager(but the bootloader is locked)

General Information

There are many ways to debloat the device.

This is only a description how I did this.

It doesn't mean that it's working for you. Please be careful. I am not responsible if oyu brick your phone. If this happened you should easily unbrick it.

So read it carefully and always check if you need the programs or not.

I debloated all system programs which I don't need and install alternatives from F-Droid Store which just need user rights

i.e.

AfWall+ as a Firewall (Root)

Calculator (SimpleMobileTools)

Calendar (SimpleMobileTools)

Clock (SimpleMobileTools)

Contacts (SimpleMobileTools)

Conversations

Dialer (SimpleMobileTools)

Editor

Essential Launcher

F-Droid

FairEmail

Foss Weather

Gallery (SimpleMobileTools)

Net Monitor for checking Net-Traffic

Open Camera

OSMAnd+

PrivacyBrowser

QuickDic

beside that:

TitaniumBackup Donate (Root) Backup & Freezing System-Apps

Total Commander (Root) file manager

VocalizerEx2 TTS

https://xdaforums.com/showthread.php?t=2566795

I debloated everything that the main features of a smartphone still works:

Phone using a Sim-Card (incl. LTE, depends on your region)

TextMessages (SMS)

Internet data

WiFi (2.4 MHz, no 5Ghz)

Bluetooth

GPS

Doing backups from all system files you want to debloat with Total Commander

create directories with permissions 755

i.e.

system/_keepsave/

system/_keepsave/system

system/_keepsave/system/app

system/_keepsave/system/preload

system/_keepsave/system/priv-app

system/_keepsave/system/vendor

system/_keepsave/system/vendor/app

system/_keepsave/system/vendor/overlay

Then backup all directories to the keepsave dirs

system/app

system/preload

system/priv-app

system/vendor

system/vendor/app

system/vendor/overlay

Then setup the system settings

I disabled everything I don't need (location only Gps, automatic System Updates/Accounts, App shadow,...)

setting up Afwall to your needs

disabling captive portal login with some alternative url

disabling ipv6 in Afwall if you don't need it

Then you can try freezing system apps with Titanium Backup

Or just delete all the bloat you don't need.

I deleted in TotalCommander

system/preload

system/vendor/app

system/vendor/overlay

in system/app are only:

/system/app/CertInstaller don't remove
/system/app/CtRoamingSettings don't remove / freeze & use only if roaming
/system/app/Eink_Settings don't remove / Settings Clearview per App!!!
/system/app/ExtShared don't remove
/system/app/HardwareDetection don't remove
/system/app/NetworkSelect don't remove
/system/app/QtiTelephonyService don't remove
/system/app/SimSettings don't remove
/system/app/Vision_AutoRunManager don't remove
/system/app/Vision_Bluetooth don't remove
/system/app/Vision_CalendarProvider don't remove
/system/app/Vision_WifiDetector don't remove
/system/app/WeatherWidget don't remove / just freeze / navigation bar flickering! com.hmct.clock.systemwidget
/system/app/WebViewGoogle don't remove

in system/priv-app are only:

/system/priv-app/CarrierConfig don't remove
/system/priv-app/com.qualcomm.location don't remove / GPS
/system/priv-app/DefaultContainerService don't remove
/system/priv-app/ExtServices don't remove
/system/priv-app/ExternalStorageProvider don't remove
/system/priv-app/FusedLocation don't remove /GPS
/system/priv-app/InputDevices don't remove
/system/priv-app/MmsService don't remove
/system/priv-app/MtpDocumentsProvider don't remove / MTP
/system/priv-app/ProxyHandler don't remove
/system/priv-app/QcomMediaProvider don't remove
/system/priv-app/SettingsIntelligence don't remove / settings needed
/system/priv-app/SettingsProvider don't remove
/system/priv-app/Shell don't remove
/system/priv-app/StatementService don't remove
/system/priv-app/StorageManager don't remove
/system/priv-app/TelephonyProvider don't remove
/system/priv-app/TeleService don't remove
/system/priv-app/Vision_CallSettings don't remove
/system/priv-app/Vision_ContactsProvider don't remove
/system/priv-app/Vision_DocumentsUI don't remove
/system/priv-app/Vision_DownloadProvider don't remove just freeze
/system/priv-app/Vision_DownloadProviderUi don't remove
/system/priv-app/Vision_MmsProvider don't remove
/system/priv-app/Vision_NetworkSetting don't remove
/system/priv-app/Vision_PackageInstaller don't remove
/system/priv-app/Vision_PermissionManager don't remove
/system/priv-app/Vision_RecentsService don't remove
/system/priv-app/Vision_ScreenOffGesture don't remove
/system/priv-app/Vision_Settings don't remove
/system/priv-app/Vision_SystemUI don't remove
/system/priv-app/Vision_Telecom don't remove

After successful debloating the system to your needs, test with Afwall log and Net Monitor if there are outgoing system apps calling home

if so freeze or delete them or let Afwall just block them.

This setup works 100% for my needs, but that doesn't mean it works in the same way for you. Please be careful. I am not responsible if oyu brick your phone. If this happened you should easily unbrick it (see above).

Have fun with a debloated chinese Firmware ;)