Since there are so many operating system choices for the Raspberry Pi, why limit yourself to just one? It is possible to dual boot multiple operating systems on the Raspberry Pi, the same as is traditionally done on any ordinary desktop system. It is not necessary to have multiple SD cards lying around with different operating systems on them, popping them into your Raspberry Pi whenever you want to boot into a different OS. Instead, we can put two or more operating systems on the same SD card.
This is a companion discussion topic for the original entry at https://linuxconfig.org/how-to-dual-boot-multiple-oss-with-raspberry-pi