FFVII Remake saved games.

I finally got around to getting a PS5 plus FFVII Intergrade and Rebirth.

Probably 3 questions:

Are PS4 Saved games compatible with PS5 FFVII Intergrade and Rebirth ?

If So, Can FFVII Remake saved games on PS4 be transferred to PS5

And, again, if so, how do I do it ?

I put so much into FFVII Remake PS4 and collected almost all items, weapons, etc so I would really, really, like to continue the game in Rebirth.

Mind you, it's only a game so it's not as if the world will come to an end if I lose all the good stuff on PS4.