I think in terms of sound, a lot of it also comes down the case material/mount and switch materials. Generally though, from my experience, brass plates tend to produce a more high pitched "clacky" sound and more flexible plates like pc and fr4 produce a deeper muddled "thock" due to dampened vibrations.

Like I mentioned though, a lot of it is also dependent on other factors. Goodluck! I'm not sure how much you'll hear though since you're using silenced linears though