As of my last knowledge update in January 2022, I don't have information on events or developments that occurred after that date, including Lionel Messi's potential 8th Ballon d'Or trophy or any celebrations by Inter Miami in an exhibition match related to that achievement.
To get the latest and most accurate information, I recommend checking the latest sports news updates, official statements from Lionel Messi or Inter Miami, and reputable sports news websites. News articles, official social media accounts, and press releases from relevant sources would provide the most current information regarding any celebrations or events related to Lionel Messi's Ballon d'Or achievements and Inter Miami's involvement.
Please note that my responses are based on information available up to January 2022, and there may have been significant events or changes in the sports world since then
