No it's not fan made.These specials were originally shown at the Kimetsu no Utage live event which was held on October 20th 2019 in Tokyo. The cast members present at the event did a live dubbing of the characters. A version with a newly recorded dub was later featured on the DVD & Blu-ray releases containing a recording of the event which came out on August 26th 2020
I was about to kill myself when I heard him say it broken down in Japanese. Dude I rewatched the whole fight in English. Jack 's voice actor was a million times better.
