Three folders in Time Machine backup with new Macbook
I recently purchased a new Macbook Pro and restored it from a Time Machine backup. After a few backups of my new Macbook in Time Machine, I noticed something different. Within the Backups.backupdb->Macbook Pro->backup date, I only had one folder named "Macintosh HD." But under my new Macbook Pro within the Backups.backupdb->Macbook Pro 2->backup date I now have three folders: "Macintosh HD", "Macintosh HD - Data" and "Recovery". Every backup since I started Time Machine with my new Macbook has all three folders. Is this how it should be, and it's something different with Big Sur vs. the older macOS? Will this be a problem if I need to use Time Machine to restore the Mac in the future? Thanks for any advice for this novice :)
MacBook Pro 13″, macOS 10.15