I think it’s more about how you tailor the keyboard.
In my eyes, the case/keycap materials, plate type, switch type, lube and mods are all going to contribute to how audible your keyboard is.
Heavier / denser materials are typically going to result in a deeper tone.
I went for a silent build on my current keyboards.
- Zilent V2 switches springs and stems bag lubed 62g lubed with 3203 and filmed
- 4mm EVA foam between the plate and the PCB.
- Stabs clipped, lubed with 205 (IIRC), and band aid modded.
- Butyl sound deadening on the top/bottom case housings and under the space bar (I would line the inside of the other keycaps, but there isn’t enough room under the rest of the keycaps.).
- ABS Cherry and ADA keycaps.
You can also add a desk mat, or mouse pad under your keyboard, to help deaden the sound.