If you’re willing to buy/be given/dumpster dive some e-waste, there are endless old-but-not-vintage PC motherboards that can be had for minimal money (like, $10-20 with CPU and RAM) that will still accept a 5.25” floppy drive and will still run a modern Windows or Linux for ease of transfer. Think Core 2 era. I have a HP Z400 workstation from ~2010 that will take a floppy drive. Beware though because some machines will be BIOS/chipset limited to only accept 3.5” 1.4MB drives. I think my HP is one of those.
EDIT: actually, no, I just looked it up — the Z400 will take a 1.2MB 5.25” drive. It will not take DD drives of any kind.
EDIT: actually, no, I just looked it up — the Z400 will take a 1.2MB 5.25” drive. It will not take DD drives of any kind.