If you choose to follow disinformation posted by a hostile nation state, is that a right to free speech or free amplification? What if those voices argue harmful or destructive effects on you and your society?

I guess the line is so blurred because often these aren't "people" but often institutions, governments and those intending to shape public opinion, even bots in some cases.

You're talking about it like Twitter is censoring someone specifically but it's so much more complicated and nuanced than that.