I wonder if WSL would in any way enable you to use dd for writing ISO's to thumb drives. Not sure if it's capable of seeing devices though.

I don't think you can with WSL1 but even if you could it's probably not a good idea since the IO performance of WSL1 is trash.

Eh, it was an idea. I know WSL works pretty good for automatic cross-platform remote data-replication.

Finding Windows software that worked like FreeFileSync but over SSH was a pain and none that I found was free. RSYNC though WSL worked great though. Just had to find the file path that took you into C:/ D:/ and vis versa.