I don't know why Amazon's filtering is like this - for comparison eBay, which seems less organised on the surface, has very granular filters inside categorie

I don't know why Amazon's filtering is like this - for comparison eBay, which seems less organised on the surface, has very granular filters inside categories. eg - searching for 'buttons' on eBa gives additional filters to narrow by colour, share, type , material, and application... Amazon offers 'works with Alexa' instead.