How did communists react to the relatively fast collapse of the soviet union? Were there any narratives around its collapse undermining the communist ideology? Did it have any appreciable effects on communist movements only tangentially linked to the soviet union? Like a significant number of people becoming disillusioned with the ideology?

I'm aware that there are a diverse range of communist ideologies and some viewed the soviet union as legitimate and others not. I would compare this question to a similar one that's been answered on how Christians reacted to the fall of Constantinople.