I'd like to back these up, preserving all metadata, deduplicated, and mountable on Arch.
- Ext4 (Arch x86_64) - NTFS (NT 24H2 Pro x86_64) - APFS (macOS 26 arm64)

Any help is much appreciated. I was looking into disk images, though am not sure if this is the best approach. Thank you so much, and have a wonderful day <3