Thank you for sharing! Looking at their blog, I saw this post about learning Japanese vocabulary (https://migaku.com/blog/japanese/how-to-learn-japanese-vocab...). They share a Japanese Netflix Frequency List - (https://docs.google.com/spreadsheets/d/15b3j9--RJ1K5hI9vz_2L...)

"To recognize 99% of all the words in Netflix's subtitles, you'd need to know 37,247 words"

Interesting approach! I really don't know how they managed to gather this list, but it's an interesting and clever method.