MDADM via USB3 connection
MDADM via USB3 connection
I don’t think there’s any significant change from Windows and macOS. Also, the RAID setup is handled through the motherboard BIOS, not the OS itself.
USB software RAID works well because the operating system manages it. The main issue might arise with flash drives.
I've noticed conversations about SSD capabilities that aren't linked through a USB adapter. Things such as erasing data and adjusting the reserved space are often mentioned.