FWIW: That 150 hour estimate came from work by Gregory Clark at UC Davis who has since cast doubt on it.
“There’s a reasonable controversy going on in medieval economic history,” Clark told (Amanda Mill). He now thinks that English peasants in the late Middle Ages may have worked closer to 300 days a year.
https://www.theatlantic.com/health/archive/2022/05/medieval-...
As for many things, there's a synthesis that seems more realistic here:
https://acoup.blog/category/collections/the-peasant/
Hint: it's not 150 days.
However, what the work time estimates are missing in this discussion is that you maintained relationships with all your neighbors and most of the village.
Exactly the opposite of the modern world, your work was solitary and your leisure time was social.