Issue with Array.reduce and Effect.reduce in Pipeline

export const reduceReturnTypeIssue = (x: string[]) => 
    Effect.succeed(x).pipe(
    Effect.map((x) =>
      x.reduce((acc, row, index) => {
        return { ...acc, [index]: row };
      }, {})
    ),
    Effect.tap(_ => Effect.log(_))
)

export const effectReduceReturnTypeIssue = (x: string[]) => 
    Effect.succeed(x).pipe(
    Effect.flatMap((x) =>
      Effect.reduce(x, {}, ((acc, row, index) => {
        return Effect.succeed({ ...acc, [index]: row });
      })
    )),
    Effect.tap(_ => Effect.log(_))
)