Giorno Giovanna

So Giorno is the protagonist of Diamond Is Unbreakable, and Josuke is the protagonist of Golden Wind/Venta Aurora. What changes?

How powerful do you think Golden Experience Requiem Ultimate would be and do you think Kars could Requiem an already Requiemed stand or do you think a stand that is already Requiem can be Requiemified into higher infinite power?

Is there any in-universe explanation for why Giorno suddenly decided to have the donut hair+braid combo once he became a teenager?

What would GER become and gain new abilities?

Did one for season's 1 and 2 already, so let's do season 3.

1: What If... Jotaro fought Diavolo in the early 1990's?

2: What If... The Duwang Gang went to Florida during the events of Stone Ocean?

3: What If... Diavolo never formed Passione?

4: What If... Giorno and his family never moved to Italy?

5: What If... Pucci won and got his perfect universe?

6: What If... 1872?

7: What If... The Pillar Men never existed?