> It looks like on Linux that the authors are obsessed with making the smallest possible binary instead of the smallest possible binary that runs anywhere.

Yep, the site offers a download link to a binary that should work everywhere (small JS detects OS and arch). The default Linux binary even has an embedded UNICODE font and implements its own widgets to avoid any shared lib dependency.

But if you want, there's a smallest version too in the repo (uses GTK widgets and fonts installed on the system, calls the portal for open file modal, and relies on udisks2 daemon to access the device without privilege). This latter also downloadable as .deb (Ubuntu and RaspiOS ARM too).

https://gitlab.com/bztsrc/usbimager/#usbimager