HamsterOS jams a 32-bit GUI operating system in a single 1.44 MB floppy disk(tomshardware.com)

https://www.tomshardware.com/video-games/retro-gaming/hamsteros-jams-a-32-bit-gui-operating-system-in-a-1-44-mb-single-floppy-for-386-era-hardware-retro-os-should-make-for-easy-living-with-dos-machines-and-software