If it's any consolation, so too is Unreal, from my experience. A lot of the times the only documentation on a feature will be random Youtubers, and an official

If it's any consolation, so too is Unreal, from my experience. A lot of the times the only documentation on a feature will be random Youtubers, and an official 3 hour stream from 4 years ago. Oh and the source code, of course.