I know Linux mint cinnamon can write isos. But I have heard that lots of people use Etcher. Would it be worth installing? Also if I had an os without a VFS (not sure if that is possible) would Etcher provide a "VFS"?
You can use any software like Unetbootin, Gnome Disk Utility, Yumi Multi Boot, xboot, Live USB Creator, etc. to create bootable USB with the help of ISO image file.