[OnePlus 6 & 6T Cross Device Development] Devil7331:
ui_print("+-------------------------------------+");
ui_print("| |");
ui_print("| Tomatot Debloater Extreme v2.3 |");
ui_print("| |");
ui_print("| by Tomatot- |");
ui_print("| |");
ui_print("| Credits: |");
ui_print("|-Primokorn for the script tutorial |");
ui_print("|-TKruzze for Zip Builder |");
ui_print("| |");
ui_print("|Optimized for OxygenOS 9.0.2. |");
ui_print("| |");
ui_print("+-------------------------------------+");
run_program("/sbin/busybox", "umount", "/system");
run_program("/sbin/busybox", "mount", "/system");
run_program("/sbin/busybox", "umount", "/vendor");
run_program("/sbin/busybox", "mount", "/vendor");
delete_recursive(
"/system/system/reserve/OPForum",
"/system/system/reserve/OPNote",
"/system/system/app/AntHalService",
"/system/system/app/AutoRegistration",
"/system/system/app/BasicDreams",
"/system/system/app/BookmarkProvider",
"/system/system/app/BTtestmode",
"/system/system/app/BuiltInPrintService",
"/system/system/app/card",
"/system/system/app/DiracManager",
"/system/system/app/EngineeringMode",
"/system/system/app/EngSpecialTest",
"/system/system/app/GooglePrintRecommendationService",
"/system/system/app/LogKitSdService",
"/system/system/app/NFCTestMode",
"/system/system/app/oem_tcma",
"/system/system/app/OemAutoTestServer",
"/system/system/app/OEMLogKit",
"/system/system/app/OPBugReportLite",
"/system/system/app/OPSesAuthentication",
"/system/system/app/PartnerBookmarksProvider",
"/system/system/app/PhotosOnline",
"/system/system/app/PlayAutoInstallConfig",
"/system/system/app/QdcmFF",
"/system/system/app/RFTuner",
"/system/system/app/SensorTestTool",
"/system/system/app/SoterService",
"/system/system/app/SeempService",
"/system/system/app/talkback",
"/system/system/app/uimremoteclient",
"/system/system/app/Videos",
"/system/system/app/WallpaperBackup",
"/system/system/app/WapiCertManage",
"/system/system/app/WifiRfTestApk",
"/system/system/priv-app/CNEService",
"/system/system/priv-app/DiracAudioControlService",
"/system/system/priv-app/GoogleFeedback",
"/system/system/priv-app/OPCellBroadcastReceiver",
"/system/system/priv-app/Tag",
"/system/system/reserve/OPBackupRestore",
"/system/system/reserve/OPFilemanager",
"/system/system/reserve/OPIconpackCircle",
"/system/system/reserve/OPIconpackSquare",
"/system/system/reserve/Weather",
"/system/system/app/Account",
"/system/system/app/BackupRestoreRemoteService",
"/system/system/app/DeskClock",
"/system/system/app/Duo",
"/system/system/app/HTMLViewer",
"/system/system/app/Music2",
"/system/system/app/NVBackupUI",
"/system/system/app/OPPush",
"/system/system/priv-app/BackupRestoreConfirmation",
"/system/system/priv-app/CallLogBackup",
"/system/system/priv-app/GoogleRestore",
"/system/system/priv-app/GoogleBackupTransport",
"/system/system/priv-app/OPDeviceManager",
"/system/system/priv-app/OPDeviceManagerProvider",
"/system/system/priv-app/SharedStorageBackup",
"/system/system/priv-app/Turbo",
"/system/system/app/Drive",
"/system/system/app/GoogleContactsSyncAdapter",
"/system/system/app/OPBackup",
"/system/system/app/Photos",
"/system/system/priv-app/GoogleOneTimeInitializer",
"/system/system/priv-app/OnePlusWizard",
"/system/system/priv-app/SetupWizard"
);
run_program("/sbin/busybox", "umount", "/data");
run_program("/sbin/busybox", "umount", "/system");
run_program("/sbin/busybox", "umount", "/vendor");
ui_print(" ");
ui_print("Done.");
ui_print(" ");
ui_print("Ready to reboot.");
ui_print(" ");
ui_print("Enjoy better battery life, more RAM and more privacy!");
ui_print(" ");

This is my script and yes i used zip builder.