What I want to know is how I do it so that the player updates constantly on the server and so that others can see their changes, for example, when they change clothes or hair, morphs, etc. that is also updated on the server, as if there was no filtering enabled for the players
To do this use RemoteEvents
https://wiki.roblox.com/index.php?title=Remote_Functions_%26_Events
https://developer.roblox.com/api-reference/class/RemoteEvent