Morgan Stanley Group Placement Process

I received an internship offer for 2023 Summer Investment Banking at MS. I was wondering if anyone knows the details on how group placement really is there. I know it's a matching process but how many people really get their top choice? I would love to be placed into the M&A or FSG group but I know that's what everyone wants.

Please let me know if anyone has statistics or knowledge of how group placement actually plays out. Any advice would help.

Thanks!