A point I always make since the threat of global climate change is one of my most important issues is that we need radical action to be done with building these massive projects and infrastructure, but nothing like that WILL be done while the profit motive is still part of the equation. We need the Green New Deal.
Look at what the so-called “leftist” Biden is doing right now, going back on what little concessions he promised us on the actual left (which was still far short of what we need to do to really combat this) and focusing on “free-market” solutions to climate change, which means nothing substantial will be done.
My model of libertarian socialism (that term actually refers to anarcho-socialists, I prefer libertarian Marxist personally) would still have economic activity directed through workers councils and through the state. It’s not like I’m talking communism or anarchism here, the state would still exist. Just it would be in conjunction with the councils so that the workers have equal power in the decision making, and not a centralized state where the workers are just slaves of the state (like how people usually think of socialism/communism).