In my entire life as a programmer, this is the one thing that I've found most confusing. Our old codebase used a lot of curried Ramda functions and nobody on the team could read any of it. We spent a week ripping every single instance of it out and replaced it with regular lodash and never looked back and never had an issue with it again.

After like ten or fifteen hours of trying to understand what currying is, I still have no idea, and frankly don't care. If I see it in a codebase it'd just be a big red flag to avoid that job altogether.