They will still sell the products they produce in a marketplace.

There is no rule that states they have to sell squat in a marketplace. They could, but they also couldn’t. That’s the whole point of the workers owning the means of production - the workers involved makes those deicisions, not a capitalist or bureaucratic parasite class.

Musk is doing more to make people realize how garbage capitalism is than Marx ever could.

think communism is what we should be striving for.

Simple - it’s the ideal. Will we ever get there? Possibly not. Is it even desirable? Debatable. But it’s always better to know where to go and not know how to get there than having the option of going anywhere and not knowing where to go.

how exactly do you think thats “hands on”?

It’s really simple… the whole idea behind anarchism (and all libertarian socialist thought, for that matter) is to put the power of decision and action back into the hands of communities and not a bunch of far-removed and unaccountable political racketeers (which is essentially how anarchists view “formal” political establishments - and they are entirely correct in this view)

Or is this one of those things where people have invented new definitions

No. Nothing new about it… the meaning behind the term “socialism” (for instance) has always referred to a condition where the workers own the means of production. The big split in the left happened because Marxists believed the state could represent the workers - the Bakuninist anarchists believed the state would simply form a new “political elite” and simply become the new elite repressing the working class. This happened long before the Russian revolution… and subsequent events proved the anarchist side correct beyond a shadow of a doubt.