To me, normie just signifies a person outside a given niche hobby.
I’m into having a Plex server in my basement. People not into that are normies in a conversation about having a Plex server. I don’t expect them to know how to setup QuickSync hardware encoding in a Plex Docker container.
I don’t like anime. To people who like anime, I’m the normie. I think Trunks is just a really cool Mastodon client. I only vaguely know it’s also a Dragonball character. If you expect me to know more than this, you’re going to be disappointed.