It's just a copy of all other models in terms of functionality. I didn't find anything controversial nor extra-ordinary in it. Image generation sucked.
Some Indian twitterers found a way to get it to utter Hindi profane words, that's probably the most controversial thing I know about it.
Just a few days ago Grok started inserting paragraphs about the contested nature of white genocide in South Africa and the 'kill the boer' chant into almost every response it gave, with the vast majority of prompts having nothing to do with South Africa, white genocide, or boers.
Some Indian twitterers found a way to get it to utter Hindi profane words, that's probably the most controversial thing I know about it.