What is client sided

To be a little more specific, what is client sided in multiplayer example blood FX and stuff like that and how would I acquire these value with simply cheat engine

corpses are client sided in multiplayer, Also chunks of wooden barricade are client sided last time I checked. (Not too sure since the update, review changelog for details/changes to destruction.) There might be more but those are the most noticeable ones I've seen in my time playing. As for the values, I myself am not savvy in that field. Hope I atleast answered 1\2 questions lol