I have the exact same issue.
I preordered a digital copy of the game on Xbox Series X (which I bought, solely so I could play this game)
To troubleshoot and (try) to get the game working, I have;
- Restarted the Console (Hard Reset, unplugged, left for 10 min etc)
- Reset the console and logged back into my account
- Cleared any Cache then Reset Console
- Reset Network settings
- Used Manual DNS network settings
- Use both a wired and wireless connection
- Downloaded the game onto both the internal storage, as well as 2 different hard drives (one HD one SSD).
- Tried to boot the game offline.
- Switched my Profile icon, theme, avatar etc to default Xbox looks (cause apparently that worked for some people).
- Uninstalled all games on my storage, Reset Console (not keeping games), Logged back into my Account, Registered Console, installed game using a wired connection.
Still Crashes after the opening Logos every time I try to boot the game.
Furthest I got was it showed the Coruscant menu for half a second, and there was an experience Bar at the top.
Another time it showed the weapons in the bottom left hand corner, but they were all overlapping each other.
Another time I got some weird static after the startup logos.