How to run any iso file by making it drag-and-droppable in a storage partition without burning the iso just like Ventoy, but without losing data?

This is something weird I have been contemplating about, so some help is necessary. I basically want to have a method of being able to boot up from any iso file. I don’t to go through the hassle of burning however, so I decided a Ventoy-like system where you just put in the isos and then choose which one to boot from would be perfect. But, the key difference between just using plain Ventoy and this is that I want to install this on my SSD directly, not on a USB (because USB 2.0 is very slow and I only have 2.0).

Now, when this question came to my mind, my original thought was to just directly install Ventoy to that drive, but there is a key roadblock: Ventoy requires an entire drive to install, and I already have an OS on this drive. And I only have one drive.

My solution:
Use a VHD, mount it in windows and use Ventoy cli with force option to force install to the (according to windows) internal drive. Then install tiny core Linux, and use the installed grub2 to chain load the VHD and finally be able to use Ventoy internal.

So finally, I come to the core of my question, “Is this possible in an ideal environment?” and “Is there a more intuitive and easier solution to this?”. Any help at all would be highly appreciated.