off the top of my head, hot food in the workplace, private locker rooms, mandated lunch breaks, mandates green spaces, noise protections, lodging accommodations, and a variety of safety regulations were all instituted under the daf after years of failing in weimar. the unions in weimar were extremely corrupt. they, like today, became vessels for political activities and communists rather than vessels for workers rights. the daf removed the private incentives from unions and kept then focused on being a mediator between employer and employee, as is the intention of unions in the first place.  it's also important to note here that they had currency controls. the reichsmark was worth 2.5 times the us dollar, as opposed to the abysmal value of the deutchmark prior. their wages remained the same because their purchasing power went through the roof. that's how they got the highest standard of living in the world in just a few years.  they didn't remove collective bargaining they just changed the structure of the unions. the point of having a single union as opposed to one per vocation is so they aren't competing with one another, as they were previously. it also made it easier to switch vocations. if you went from being an electrician to a plumber you didn't need to go to a new union with new union fees. you were already covered.
United States