This was written by ai, right?

Reduce is harder to read. Maps and filters are deeply simple. The problem space a reduce can solve is, I’m pretty sure, strictly larger than both of them. Its generality is its downfall.

I’ll happily use a reduce, but it has to be either as a well named function or immediately stored in a well named variable. If the reduce is complex enough that you can’t name it, that’s a smell to me, reach for a different tool.