With the final chapter of Evangelion releasing on Amazon this weekend globally, fans may want to check out NHK Professional: Documentary of Hideaki Anno (& EVANGELION 3.0+1.0) special which originally aired in March 2021, is currently available on Amazon Prime:

https://www.amazon.com/gp/video/detail/B09C73MV21/ref=atv_dp_share_cu_r

The documentary crew followed Anno's journey and struggle with production and his unorthodox methods between 2017 and 2020 in his quest for perfection in completing his work.