Blender lacks a simple modifier to add secondary motion to armature rigs.

This Geo-Node modifier addresses that with a simple to apply, drag and drop modifier.

Simple apply the mod' to any mesh with an armature and see the 'wobble'.
Adjust the Mass, Tension and Dampening to suite your style and add simple Gravity or Wind to affect the 'wobble'.

The effect requires the mesh to be controlled by an armature and Blender 4.01 +

Files included are the Node Group marked as an Asset and the 'Dino Walk' as seen in the video. Uses ARP.

** Updated the files to include Internal and External hits and WIP muscles **