fwupd is described as 'Simple daemon to allow session software to update device firmware on your local machine. It's designed for desktops, but also usable on phones and headless servers' and is an app in the os & utilities category. There are 2 alternatives to fwupd for Linux, Flathub, GNOME, Mac and Windows. The best fwupd alternative is UEFITool, which is both free and Open Source.
UEFITool is a cross-platform C++/Qt program for parsing, extracting and modifying UEFI firmware images. It supports parsing of full BIOS images starting with the flash descriptor or any binary files containing UEFI volumes.
