here's an objective test some people may find valuable, though it is for studio monitors rather than floor standing speakers.
My guess would be that floor standing speakers have even more weight (to driver ratio) and less vibration.
http://ethanwiner.com/speaker_isolation.htm
I did listen to a demonstration of Focal speakers with and without isolation products applied at Rocky Mountain audio Fest in Denver Colorado (2018). The isolation product was impressive, in that it seems to clear up the vocals, but it also raised the speaker a couple of inches, which means that the Tweeter was in a different position, which could lead to the same effect.
My guess would be that floor standing speakers have even more weight (to driver ratio) and less vibration.
http://ethanwiner.com/speaker_isolation.htm
I did listen to a demonstration of Focal speakers with and without isolation products applied at Rocky Mountain audio Fest in Denver Colorado (2018). The isolation product was impressive, in that it seems to clear up the vocals, but it also raised the speaker a couple of inches, which means that the Tweeter was in a different position, which could lead to the same effect.