How to get a MacOS VM of older OS(13.X)??

I am running on Sonoma 14.X and I need to download and install VM of older OS (Ventura).

Whatever the value I change in deployment target it downloads VM of Sonoma OS. I am from QA and need older OS to test app compatibility.

https://developer.apple.com/documentation/virtualization/running_macos_in_a_virtual_machine_on_apple_silicon_macs

there is a collection of older ipsw files here: https://mrmacintosh.com/apple-silicon-m1-full-macos-restore-ipsw-firmware-files-database/

How to get a MacOS VM of older OS(13.X)??
 
 
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