I see that on my Xiaomi red note 10 pro i can receive football live notification when there's a game but does it also work with rugby ? I can't find how.
Welcome to Android Central! Are you talking about updates from the Google app, or from some other source?
If you're talking about Google, I used the steps here (https://mobileinternist.com/google-sports-notifications) to find out that this feature doesn't include rugby (at least not yet). You can send feedback to Google to request it be added.