I want to remove “Sites” and “Add a Place” from the open menu of Word, Excel, PowerPoint, etc.

I have tried the reg key:
HKEY_CURRENT_USER\Software\Policies\Microsoft\Offi ce\16.0\common\internet
“UseOnlineContent”=dword:00000000

This does the trick but breaks Outlook Exchange O-Auth login.

Any other way to remove those items without breaking Outlook.