Distortion from vibration is a real thing. Ever hear of tube microphonics? Capacitor microphonics? 30 some years ago everyone in the room experienced an improvement during a double blind test of putting a cd player on an air suspension table (designed for laser optics because vibration matters there too). It wasn't an earth shattering improvement, but everyone was able to correctly identify when the air table was used. This, even though all the gear was in a back room behind the listening room with the speakers! Expensive piece of gear which inspired many anti vibration products since. Hobbyists went for the inflated bicycle inner tube under a board solution.
Not all tweaks have to be expensive. Here is one from Ric Schultz at Tweakaudio to decouple the magnetic field of your speaker cables from floor interference. But, if you don't hear differences in dacs or power conditioning, don't even bother.
:
View attachment 90517