mate123

const result = [...arr]
  .sort((a, b) => a.length - b.length)
  .reduce((acc, n) => (
    acc.some(m => n.includes(m)) || acc.push(n),
    acc
  ), []);

const result = arr.filter((n, i, a) => !a.some((m, j) => i !== j && n.includes(m)));