Never, ever, ever forget that the 40 hour work week was not the ideal, but an insufficient compromise that still leaves you permanently debilitated for the benefit of the bourgeoisie.
Everything in the post above is true, but also if you have the flexibility to escape the 40 hour work week, putting yourself back in that 40 hour work week is just you responding to that conditioning.
The first capitalist you should devour is the one in your head.