It's not differentiating between "casual Linux users" or "real Linux users," Valve's Steam does not belong in the GNU operating system (GNU/Linux) since it forces users to install a nonfree interface and also invites users to be subject to DRM (though it is optional for developers to enable or not). The problem is not Steam's role as a content distribution manager (handling payments, delivering files), but the fact that it restricts the users freedom through their steam client (which there are no viable free software solutions to).

If a discussion of free software unnerves you, I don't care. But to label this as a conflict between "casual vs real, normie vs elite" is just unironically doing what this meme is mocking in the first place.