Basic Communism is the preceding step to advanced Communism, yes. Marx makes this exceptionally clear. What specifically do you think people are advocating for that cannot work?
There are numerous solutions to the “undesirable jobs” questions. For background, Marx makes it very clear that intense labor is condensed unskilled labor, sake with skilled labor. In lower Communism by which skilled labor is still a requirement, and thus labor takes on different characters, pay would likely be represented in different manners depending on intensity and complexity. Feel free to ask any questions if this is confusing.
I agree that misinformation is a huge problem, but I disagree that your conclusion is that it causes the issues with Capitalism, rather than Capitalism itself. Capitalism structurally has issues with power imbalance, and issues like the Tendency for the Rate of Profit to Fall that must be overcome via Socialism.
Overall, I think you would be served immensely by reading some Marx. I know that’s a very typical leftist response, but I do believe much of your issues come from assuming Communists want to jump straight to end-stage Communism now, rather than building it over time and adjusting with the change in Material conditions.