Great thanks! 4x4 dnb or Neuro Tech would then be the appropriate genre I guess! Can't keep track of so many subgenres 😅

Yeah it's typical dnb bass but more like industrial techno. Checkout hard Neurofunk tracks. Some are close to this.

It's indeed quite specific. Does this meet the requirements? https://soundcloud.com/wearestudio/borders-dont-stop-premiere

What mergefs options did you pass in fstab? Check the mount options on GitHub. It took me way too long to discover ignorepponrename=true. In your case moveonenospc could be relevant.