Hello, how are you?
Welcome to the Microsoft Community!
My name is Paloma B., I'm an independent advisor, I'm here to help you in the best possible way.
I understand that you have questions about the Ventoy Multiboot USB Creator software.
Yes, this is a safe and useful tool.
Ventoy does things a little differently from other programs of its kind. Instead of extracting the ISO images on the pendrive, it copies the ISO files to the pendrive and uses GRUB to manage the boot.
The biggest advantage of using this method is that you can update the ISO images easily, just as you replace files on your computer, just copy the updated ISO file to the USB stick.
It is as good a choice as Rufus, however Ventory is for multiboot, unlike Rufus which is only for a single install.
I await news.
If these procedures helped you in any way, please click on "I solved my problem" and also mark as an answer, so you can help others users.
We will always be available for whatever you need!