How loose are your symbal pads meant to be?

Silly question maybe, but I've seen some videos with edrums where the cymbals are "looser" (like real acoustic kits) when hit and some who have set up where you hit the cymbal and it is just like hitting a pad I.e. doesn't move. Is this personal preference or are the cymbals meant to be looser because of a better sound?

Example: https://vm.tiktok.com/ZNd1WNUNJ/

Thanks!