Home Folder from old Mac Mini showing in New Mac Studio

I purchased a Mac Mini M1 (MM-M1) a few months after they were released. Then in March of 2025 I upgraded to a Mac Mini M4 (MiniYo). Yesterday I upgraded (?) to a Mac Studio M2 (StudioYo). After the migration from the MiniYo Time Machine Backup, I noticed the home folder in the finder sidebar is named MM-M1. I have not used or powered up this computer for almost a year. Can someone tell me why the Home Folder is showing, and is there a way to replace it or deleted it.