OK, it's PowerShell, so use the syntax you are already using for example with
Even that is shown at the article, I've pointed you to above already:
https://winscp.net/eng/docs/commandline#syntax
-filemask=
:
"cd `"`"/Covid Reports`"`""`
Even that is shown at the article, I've pointed you to above already:
https://winscp.net/eng/docs/commandline#syntax