I need to install MacOS in VM, inside my Mac Mini with Sequoia 15.2, have a problem

* I have Mac Mini M4 with Sequoia 15.2 installed.
* I have license from Parallels and installed Parallels Desktop 20.
* I need to have the MacOS running as VM, because I need to do development on MacOS and do Not want to mess my main OS.
* I can see that Parallels Desktop 20 does support MacOS.
* However, the GUI of Parallels offers me Only the 15.6.0 (24G84) version to install.
* Once installed, It prompts me to upgrade my main OS, which I do NOT want to do at all.
* Upgrading my Main OS would essentially break my existing installed apps, and I do NOT want to do that.
* I need help from Parallels to understand how to install Previous MacOS version , like exactly 15.2, which I run.

 

The prompt is to update the Device Support files needed to run macOS in a virtual machine, not the host macOS itself.