Is it a worse programming experience to understand an esoteric library's use of [T U], or to need to choose between codegen vs interface{} for the most common u

Is it a worse programming experience to understand an esoteric library's use of [T U], or to need to choose between codegen vs interface{} for the most common use cases? The ability to misuse a feature should not be understated, but I think people have been jumping over the missing stair of interface{} for so long that they've forgotten how much of an incredible pain it is.