I assume you want to receiveddatetime property of the email? Within the expression you are referring to a property from the Manually trigger a flow action.
However, the details of this property are in the Get Emails (v3) action. You can refer to the receiveddatetime property by using the items() function instead.
Try this expression:
concat(formatdatetime(items('Apply_to_each_2')?['receivedDateTime'],'yyyy-MM-dd-hhmm - '),item()?['Name'])