Google has been gradually nerfing its advanced operators. intitle:index of still works, but Google now returns fewer results than it did in 2015. Why? Because of a shift to HTTPS and better server default configurations. However, many legacy HTTP servers and IoT devices still leak directories.
For web administrators, preventing your media libraries or private folders from appearing in Google results under queries like "index of" is a straightforward process: intitle index of mkv love story
The most romantic thing you can do is support the filmmakers who make those stories possible—whether that’s through a theater ticket, a digital rental, or a physical Blu-ray that you rip yourself into MKV format. Google has been gradually nerfing its advanced operators