I'm in the same boat. First crash happened during the character creation phase, then I was able to play for ~1 hour before another sudden freezing during the first side quest "Cabin Fever". The freezing ends with a crash and it comes back to the XboX dashboard. Tried again several times, all with the same outcome after few minutes of gameplay: freezing, crashing, dashboard....
No errors displayed, no overheating warnings, nothing.... the console seems to work at the usual temperature, the fan keeps silent and other games run smoothly (eFootball, Starfield, Wild Hearts, etc).
So, my dear Obsidian: what's the problem?