Ventoy is an open source tool to create bootable USB drive for ISO/WIM/IMG/VHD(x)/EFI files.
Popsicle
Popsicle is a Linux utility for flashing multiple USB devices in parallel, written in Rust.
usbimager
A very minimal GUI app that can write compressed disk images to USB drives.
MultiWriter
Write an ISO file to multiple USB devices at once
VirtualBox
VirtualBox is a powerful x86 and AMD64/Intel64 virtualization product for enterprise as well as home use. Not only is VirtualBox an extremely feature rich, high performance product for enterprise customers, it is also the only professional solution that is freely available as Open Source Software under the terms of the GNU General Public License (GPL) version 2.
Mintstick
This really is the simplest application for the purpose it carries with it. If you want to simply format a USB stick or write an iso to a USB stick, then that’s all it offers. Nothing more, nothing less. Simply beautiful and functional.
Gnome Boxes
A simple GNOME application to view, access, and manage remote and virtual systems.