[Red Dead Redemption 2] Save Backup ?

Hello, I currently have the Standard version of Red Dead Redemption 2 and I would like to switch to Ultimate, having already searched the Internet I saw that it was not possible to Upgrade its version, but I am wondering likewise a question.
If I buy the Ultimate version, will the history mode save be deleted ?

Red Dead Redemption 2 have a cloud save if you enabled it

Thank you, however I have a second question. Knowing that I have to buy the Ultimate version at a high price, what can I do? Because on the Launcher Rockstar I already have the game and on the site also so impossible for me to buy the game with a higher version! Am I therefore OBLIGED to recreate an account ONLY for that ???

one of my favorite game on xbox , to be honest enjoyed this game .