They are still not the same type, Character Movement Component does not equal mover component. If you know the VR Character Movement Component does have the parent class of Mover Component, then you could cast it to type MoverComponent first, if the cast succeeds, you’ll be able to connect the output of the cast into the Get Velocity Node.
The second image error is because Add Mover Component wants a AActor Object Reference, VRMovement is a UComponent Object Reference.
If you reparent your Mover Component, to be a child of Character Movement Component.
Add the Mover Component to your VR Root, you can then call your VRRoot->GetCharacterMovement()->CastTo(MoverComponent)