Ford wasn’t responsible for the forty hour week - the modern equivalent would be describing the fight for fifteen as an initiative pushed by Amazon. Amazon only raised warehouse pay because they saw the writing on the wall.
Politifact seems to think this attribution of the forty hour week is a conservative meme politifact.com/…/does-8-hour-day-and-40-hour-come… but it doesn’t really reflect the truth. Ford’s policy change also only happened two years after Woodrow Wilson was elected and a big policy debate in that election had been Teddy Roosevelt’s endorsement of a 40 hour week.
Wikipedia has a pretty solid breakdown of the history of the 40 hour week and the foundations for the change were laid decades to a century earlier by various labor movements. en.wikipedia.org/wiki/Eight-hour_day