How to Dual Boot a Raspberry Pi Using BerryBoot
Yes, you can install different OSs on different SD cards but that does cost a bit extra. BerryBoot will not only present you with options to select, download and install other OSs, you can also install the OSs to other locations (like an external hard drive or SSD drive) than just the SD card, and you can backup an OS to a different location or even delete it from within BerryBoot.
See https://www.makeuseof.com/tag/dual-boot-raspberry-pi/
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How to Dual Boot a Raspberry Pi Using BerryBoot |