Make the same person show up everywhere
A creator identity is the set of choices a stranger can recognize in a thumbnail, a profile, and the first sentence. If your Twitch name, TikTok handle, and YouTube banner tell three stories, you are making people do extra work.
You do not need a full brand deck. You need a readable name, a face or mark that still works as a tiny circle, and a way of talking you can keep on a tired Thursday.