How was socialism economically organized and practiced exactly, from former USSR to the 5 living AES? (Just give me one example)

cross-posted from: https://lemmygrad.ml/post/5504533

I'm confused

So far, I've heard that accumulation, technological advancement, and thus concentration of capital from the previous capitalist economy would leave its print on the later modern socialist economies

But other than that, I've realized I've never looked much into what distinguishes AES's economic management, mainly of state-owned enterprises, from capitalist economy's management, in concrete policy

I can understand co-operatives, but such orgs don't necessarily make up socialism, as you guys would say

::: spoiler to Libs If you gimme a deeply unserious answer, I will fuck your father

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