iCloud backups aren't stored as accessible files on your local drive; they live on Apple’s servers. You can, however, view and manage them from any of your devices: View and manage iCloud device backups - Apple Support
If you are using an older Mac that still uses iTunes, the location is the same as above. where iphone backup
iPhone backups can take up tens of gigabytes of space. If you found the backup location to delete old data, it is safer to do it through the software interface rather than manually deleting files. iCloud backups aren't stored as accessible files on