For some reason, there still exists a considerable number of people not yet convinced that what had been experienced in the Soviet Union was “a true socialist/communist form of government”

The sad reality is that the Russian Revolution did establish a true socialist form of government!
As per Marx’s teachings.
The communists had been in charge of things, and the things failed to become better.
In fact, they had become worse.
Eventually, the Soviet Union – along with all other socialist attempts, had crumbled under their own weight.

Those who want to find better alternatives to democratic capitalism – good luck with that – need to find another word but socialism to describe their goal.
Or wait a few generations before attempting to give it a new meaning. The current one had been wasted by the likes of Marx, Lenin, Stalin, Mao, Kim, Ceausescu…