Hot swapping of my SATA drives had always function properly on Arch, it was sufficient to enable it from within the BIOS the first time I've needed it.
1-For unplugging I should unplug the data cable first then the power cable after a few seconds because: that gives it a few seconds to empty its cache.
Hot swap allows devices to be removed and inserted while the system is running. Note, This feature is not supported with Intel® Optane™ memory volumes. In order ...