Fleishman writes, “Chances are, however, that you have external hard drives and thumb drives formatted using HFS+.”
“Apple doesn’t require that you change the file system format on external drives,” Fleishman writes, “whether attached at startup or plugged in temporarily.”
Read more in the full article here.
MacDailyNews Take: It just works. Of course, you’ll likely want to utilize APFS wherever you can for the performance and other advantages it offers.