The great thing about macOS as the foundation for Quadruple-booting Macs is Time Machine because of its power to backup and restore; however, it will only do so with the macOS partition. The only way to get that kind of recovery power is through a live bootable tool like Clonezilla. Thing is, such software only works on none T-chip Macs.
Non-T-Chip Macs
- Boot into an admin level account in any OS
- Download UNetBootIn
T-Chip Macs
- Boot into admin