Know not much about Laos, but as China does nothing against the chains of the workers, it is a poor example of socialism.
That’s a really long winded way to say you don’t know much about Laos or China.
Is modern China better than previous, feudal China? Yes, by far. Has it been anticapitalist / antifascist? In the beginning for sure, by now it’s state-capitalism. Has it been a proletariat-controlled society? No.
Which one of these three aspects is most important for the qualification of socialism to you?
To my perception, instead of a bourgeoisie controlling the means of production, it is the non-working party members who (indirectly) control the means of production. The only difference being a party badge.
I recommend actually learning about China instead of spewing nonsense. Here are a couple of books you can get started with to get a bit of an understanding of the subject.
Has it been anticapitalist/antifascist?
Why are you saying that? Being a capitalist does not mean being a fascist.
Has it been a proletariat-controlled society? No.
Do you get your information about China from western news medias?