I had a carbon mount on my gravel bike and it vibrated badly. I ended up getting an alloy mount which I found to be far more stable, though at a slight weight penalty. I can attach my GPS computer and Lumina light with no vibration.
https://www.aliexpress.us/item/3256805826530247.html?
Interesting, good tip! I need a mount for my new build as its not included. Good tip on the non carbon, I guess ill get alloy also. Did you try any other mounts then the one you linked? Does it come with screws?