My take on /r/antiwork is that people not working is the end goal, which is the hope for a true futuristic utopia right? Obviously we can't reach that yet, so people compromise by wanting better working conditions in the meantime.
Soviet Union was a brutal dictatorship with an elite class operating under the guise of communism. Same goes for any notions of it being socialist. Under no circumstance was the means of production owned by the workers in the USSR. Also most folks pushing for socialism are pushing for Social Democracy.