Go provides generic types since v1.0 - maps, slices and channels. Go also provides generic functions and operators for working with these types - append, copy, clear, delete. This allows writing clear and efficient code.

There is close to zero practical need in user-defined generic types and generic functions. Go 1.18 opened Pandora box of unnecessary complexity of Go specification and Go type system because of generics. Users started writing overcomplicated generic code instead of writing simple code solving the given concrete task.