I have just viewed a YouTube video on how to set up my Mac as a Mojave/Catalina dual-boot, using two APFS volumes on the internal drive, instead of using a bootable external drive.
But is there a way to select the boot OS without having to go into System Preferences every time I want to switch? And is there a way that's compatible with the bootable APFS volumes being encrypted?
So far, everything I've seen online about Boot Camp seems to indicate that it's strictly for setting up a Mac/WinDoze dual-boot. Am I mistaken? Can it do what I want here?
By comparison, my DOS/Linux dual boot at home boots to a GRUB menu, that allows me to select the desired OS (PC-DOS 2000 or Ubuntu Hardy Heron), defaulting to whatever OS I used last.