The rise of steam power during the industrial revolution didn't just result in people working fewer hours. Workers were much more productive than before, but they didn't automatically get shorter work weeks.

Getting an 8-hour work day required the workers to form powerful unions and go on strike. Those strikes were broken up by private security and cops. People were killed. But, eventually, decades later, the rich people with power were forced to negotiate and 8 hour days were the norm.

I have known individual workers who had skills that were in high demand which gave them leverage. They negotiated deals like 4 day work weeks, or 30 hour work weeks because they could.

But, for the average worker to get a shorter work week, it's going to take collective action. It's probably also going to require that blood be spilled. Unless people are angry enough to getting beaten or maybe killed, nothing's going to change. Step 1 is joining a union.