A funny thing I discovered… When you think you have blocked access to third-party cloud storage solutions in teams, you discover you can still add Egnyte :).
I am missing the option to disable Egnyte ?? So just open PowerShell and copy paste…
import-Module “C:\Program Files\Common Files\Skype for Business Online\Modules\SkypeOnlineConnector\SkypeOnlineConnector.psd1”
$Cred = Get-Credential
$CSSession = New-CsOnlineSession -Credential $Cred
Import-PSSession -Session $CSSession
Set-CsTeamsClientConfiguration -AllowEgnyte $false