I trade my time at work to sit at a comfy desk and type for money, and that is work. And I will negotiate for more time and money so that I may spend more time lifting heavy things at a gym. Funnily enough that is leisure and it costs me money. It is in the asymmetry of needs that we create excess value by working for each other taking care of the things they do not want to do for themselves.
Labor theory makes no sense in how people actually choose to go about their lives. Which is why modern economics is so focused on how to just maximise as much generic utility out of a market. And it is usually Marxists who are actually the most obsessed about counting up the little green slips of paper that don't mean anything.
You reference Hegel, but it is specifically his idea that progress is inevitable. Which is exactly why I reject Marx. Marx believed that making functioning plans was useless since progress was inevitable once unleashed. But Marx was a leech who counted on his friends for his subsistence and others to actually test his ideas. Progress is only made by intentional and planned efforts to deal with problems rather than just criticize and shake your fist at society.