Searching for "S1 2021" often leads to dead ends because the files for Season 1 are historically categorized under 2012. Including "2021" in your search might point you toward a specific re-upload, a compressed file re-released that year, or simply irrelevant results.
You might ask: “Doesn’t Arrow S1 date back to 2012? Why target 2021?” index of arrow s1 2021
If you are looking for an "index" or guide to the first season of the Searching for "S1 2021" often leads to dead
The primary issue with the search query "index of arrow s1 2021" is the year included at the end. a compressed file re-released that year