[calypso]

Is this from the Secret Tape crew (NoClip)? The 25th Half-life 1 documentary was done by them.

[boneitis]

There is another submission here[0] with a lot more traction and discussion that provides better context. There was a content update, complete with a promotional webpage and such .. which also answers that, yes, Secret Tape did this documentary as well.

[0]: https://news.ycombinator.com/item?id=42151865