I think his secondary point is to show the potential. His primary point is likely that if you set this all up for home use, you can use mostly the same config to use it at work. This way, when you go home or go to work, you're dealing with the same environment and workflows.

Maybe he is a freelancer or a business owner and not an employee. If you’re one of the former, there’s often little separation between work and personal. I only truly enforce separation when I’m an employee, with different devices for each context.