TheRasteri | Flash GOTEK Floppy without Serial Adapter - For Amiga/Atari ST/Amstrad CPC/Spectrum/Acorn/IBM-PC @TheRasteri | Uploaded July 2016 | Updated October 2024, 2 hours ago.
A guide to flashing a GOTEK floppy over USB, without needing a USB-TTL Serial adapter or any additional hardware other than a (slightly non-standard) USB A - USB A Cable.

You could even make the cable yourself by hacking two other standard USB cables.

Dfuse can be found here : st.com/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-programmers/stsw-stm32080.html