You make it clear with your audience that you’re talking about the “liberal” in the economic sense and not “liberal” in the philosophical sense.

Liberalism as a philosophy is connected to the economic structure? Are you referring to a different philosophy and calling it liberal?

From a philosophical perspective is the difference between being pro changes (liberal) vs being against changes (conservative)

Okay, yes, you are. Liberalism is literally the status quo.

in this sense you could say there are conservative communists (want to follow Marx’s philosophy to the letter) and liberal communists (believe in the basic principles but feel some things need to be adjusted)

You literally can’t be a marxist and take Marx as dogma. Marxism is a process based ideology.