Provide the option to Skype for Business 2016 Online users to disable the "Add your photo - it'll help people get to know you" contextual tip

Applies to: Skype for Business 2016

To get this update, install the May 7, 2019, update (KB4464532) for Microsoft Skype for Business 2016.
Note
Before you apply this update, make sure that you create a Group Policy Object (GPO) to add a new DWORD registry key EnableContextualMessages and set the value to 1 in the path:
HKEY_CURRENT_USER\SOFTWARE\Policies\Microsoft\Office\16.0\Lync
or
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Lync
Alternatively, you can enable this by creating a custom policy entry and add it to the client policy:
$x = New-CsClientPolicyEntry -Name "EnableContextualMessages" -Value "true"
Set-CsClientPolicy -Identity "<ClientPolicyName>" -PolicyEntry @{Add=$x}