If the Sun becames a Giant Red, that will means that Jupiter would become suitable for life?

The Sun becoming a Red Giant does not change Jupiter's atmosphere of surface conditions to sustain life. The pressure will still be far too great, and the atmosphere will be unbreathable, not much different than it is today.

Jupiter will not be suitable for life, but some of Jupiter's moons may be for about one million years. Very advanced beings can live almost any where with major tech support.

We would all die on earth and only the super rich would make it to Jupiter, where they would all eventually die of greed!