Yes, they have for me...
Hard cones/ball bearings brighten up the sound VS soft footers (less/tighter bass/more detail), but they are a mixed bag.
Just rec'd trying something cheap/free as it seems to me that you like the Jolida, but just want a bit more detail.
I ended up (years ago) using the stock footers on my gear in combination with specialty shelves in my rack for the source components (TT/CD), but did try various soft/hard footers with power amps/ preamps/phono preamps & dacs and...
Yes, the footers did change the sound and my electronics are not even located in the listening room (see my system link/details) so airborne vibration was not really a part of the equation.
Even a hard wood cutting board placed under the amp (forgot to mention that one) may make enough difference in adding detail, depending on what the amp is resting on now.
DeKay