Impact of enabling IFD on On Prem version 8.2

Hi Forum,

We are currently using Using Xrm.Client to connect to our On prem installation of D365 version 8.2. We now need to enable IFD so that we can connect it to Exchange online(due to depreciation of basic auth in EWS) as it is currently using Email router.

Could you please advise if the connection string will still work after enabling IFD on it and we can still use Xrm.Client  to connect our .Net applications to D365.

Current connection string and methods :

<add name="Xrm" connectionString="Server=http://servername/Development; Domain=domain; Username=username; Password=password" />

public static XrmServiceContext GetXrmServiceContext()
{
var conn = new Microsoft.Xrm.Tooling.Connector.CrmServiceClient(ConfigurationManager.ConnectionStrings["Xrm"].ConnectionString);
var orgs = (IOrganizationService)conn.OrganizationServiceProxy != null ? (IOrganizationService)conn.OrganizationServiceProxy : (IOrganizationService)conn.OrganizationWebProxyClient;
var xrm = new XrmServiceContext(orgs);

return xrm;
}