In CloudSOC -> Securlet -> Office 365 -> Apps it lists the apps that are given from O365. Apps from Azure show up but apps from Teams do not show
Teams option is not enabled in the Office 365 Securlet.
Go to CloudSOC -> Store -> and click Configure on the Office 365 Securlet. At the bottom, if the Teams checkbox is not checked, the O365 Securlet needs to be deactivated and reactivated to enable that Teams option.