Full video:
View: https://www.youtube.com/watch?v=9L-31Fg_jfg
Here are the timestamps:
Originally 3 years of development time planned, ended up at 7 years, 11 months, and 26 days. (11:17)
Arrowhead GS grew from 35 to 100 people during Helldivers 2's development. (12:43)
Sony doubled budget during development after prototype. (17:04)
Helldivers 2 had a peak CCU of 750'000+, studio expected <150'000. (29:00)