Include "total" field for Get Videos, as with Kraken previously
Previously a call to "https://api.twitch.tv/kraken/channels/123456/videos" included "_total" (The total number of videos).
This was removed in Helix.
As a replacement, you need to iterate through every 100 videos for a channel and count manually. This results in thousands of extra API calls.
TcNobo shared this idea