barabapapa, those are very interesting.
Isolating speakers from lively floors is a must usually for best sound. I’ve found it to be one of the most basic and effective room tweaks one can do.
There are many products that do this well. The main thing is find one that works for you and your speakers best.
One will be amazed how much better most systems can sound when interactions with lively floors are minimized. Muddy bass is reduced and everything is cleaned up resulting in improved imaging and soundstage as well. It really lets you hear your gear more and not so much the room.
I use Auralex Subdude platforms under my large floorstanders and Isoacoustics brand stands under my monitors and both are similarly quite effective.
These are good examples of products that solve a real problem simply for very reasonable cost that will appeal to many.