Solução: Créditos: tiagomatosweb O MELHOR!!!

const content = BETS.map((o) => {
                    const numbersArray = o.numbers.split(',').map(n => parseInt(n))
                    const intersection = numbersArray.filter(n => TRANSFORME_STRING_TO_ARRAY.includes(n))
                    return {
                        ...o,
                        hits: intersection.length,
                        awarded: intersection.length >= 4 ? true : false,
                        numbersArray,
                        intersection
                    }
                })