Late as a Cygwin user...
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… but hey, better late than never!
So I was just complaining about how PuTTY doesn’t seem to handle SSH keys (e.g. AWS, Azure) very well, and then I came to (belated) realization that because rsync can be used in Windows via Cygwin, so can ssh.
Now I don’t waste time in a UI managing PuTTY profiles, generating PPKs, or fidding with regedit.exe to clean up cached host fingerprints.
Try Cygwin, today.