Noise cancelling Chiron Y-axis
Have you tried a concrete tile for garden with foam below it?
Check https://www.cnckitchen.com/blog/reduce-your-3d-printing-noise-with-a-concrete-paver
The same is on

                
            
Frequencies at 200+ Hz should not get to the neighbours, the walls and floor will absorb them. Lower frequencies are transmitted much more (see the video).
Try that, it's super cheap, and if not enough let us know for further help.