How can you tell / identify which macOS Recovery actually boots with a dual macOS installation in one APFS partition/container?

macos partition recovery multi-boot

This is 2013 iMac with High Sierra and Catalina installed in the same APFS container. When first booted to a recovery you will a small icon next to Reinstall macOS, which represents which macOS is install. Below is High Sierra.

Next is Catalina.

By selecting macOS Utilites->About macOS Utilities from the menu bar, you can get a larger icon. Below is High Sierra.

Next is Catalina.

By selecting Reinstall macOS from the initial window, you can get an even larger icon and a label. Below is High Sierra.

Next is Catalina.

By selecting Utilties->Terminal from the menu bar, you can get Terminal application window. If you enter the command sw_vers you will the the version of macOS. Below is High Sierra.

Next is Catalina.

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