[2023] [Windows 11] Cursor not appearing when game loads

As you say, this is exclusively an Epic issue.

Do you use any type of cursor customization, such as Mouse Trails in Windows? If so, please turn it off before playing the game.

I found this older report and workaround/fix for it - does that help you too?
https://www.reddit.com/r/reddeadredemption/comments/dwhc6b