Set
https://winscp.net/eng/docs/ui_login_environment#putty
NoRemoteWinTitle=1
in "PuTTY terminal settings":
https://winscp.net/eng/docs/ui_login_environment#putty
NoRemoteWinTitle=1
in "PuTTY terminal settings":
Is this work? I'm figuring it out how that feature works.