SDWAN and Express route

Hello Team ,

 We have a global MPLS Network for a Service Provider X . Now we want to estalish Express route for our Hub vnets in Azure cloud .  this looks fine 

Now we also have an SDWAN project running ;there is a Juniper Device on prem . which split the traffic between MPLS and VPN  .  when traffic switch to MPLS , juniper will do encryption . 

So do express route support encryption ? will there be any benefit ? how do we use pure MPLS express route and SDWAN together