Moving from horses to cars did not give you more free time. Moving from telephone to smartphone did not give more fishing time. You just became more mobile, more productive and more reachable.
I might keep a tablet or old phone with no service so that I can still do email.
Some people tried that a bit and they had to retreat back to the usual connected life. What happens is, that old non-digital disconnected world is no longer there waiting for you. It may pretend to be the old world you desired, but it is looking at you and judging you. You become an animal in a zoo, instead of an anonymous part of the old-time world.
Oh how I'd love to just use an old android with graphene os and work half the time. Unfortunately the math doesn't work
I can throw away all my worldly possessions and post up in a cardboard box. My old bosses would still probably expect me to respond at 8pm to a message. Giving me a company phone if necessary.
It's very well supported that efficiencies have gone up in the workforce over the decades, but hours worked have also increased. We're being squeezed.