Anarchy in our reality is basically just warlordism. But when people talk about being an anarchist, they usually mean something like anarcho-syndicalism or anarcho-capitalism.
I’m not an anarchist so I’m not going to do well explaining it but usually, the “anarchy” part is a step towards a larger transformational goal. No one is an “anarchist” in the sense of wanting society to collapse. The “anarcho-“ part is them saying a layer of power (like the nation state, for instance) is unnecessary.