Thanks, as always, Victor! 
I want to detect when the user “shakes” the controller. Is there anything in the OpenXR Template, Enhanced Input System or anything else in the UE to help me with that (such as access to IMU data, or detection of speed / velocity of controllers), or do I need to build my own solution (which would be less precise and have more lag), e.g., from tracking the controllers position (via Get World Location) or adding a collision box as a child of each of the motion controller and using Get Physics Linear Velocity?
Edit: I’ve found Set XRTimed Input Action Delegate | Unreal Engine Documentation and Get Controller Transform for Time | Unreal Engine Documentation , and the latter seems to provide linear velocity and acceleration (among others), but I have no idea how to use it from reading the documentation…