I should have used the much better url for this - https://bztsrc.gitlab.io/usbimager/

I like rufus on windows but it feels weird to fire up my gaming rig to write a linux usb. Usbimager is cross platform.

Also discovered this user's manual for usbimager -

https://gitlab.com/bztsrc/usbimager/raw/master/usbimager-man...