Playlists vs the next-video Series setting

Playlists vs the next-video Series setting
Heard from a binge-engineering creator: people lean on playlists for session time and ignore the cleaner lever.
— A playlist groups videos, but autoplay inside it can drag viewers into older, weaker content and tank session quality
— The Series setting links exactly ONE strong next video, so you control the chain and feed YouTube a tight session signal
Confidence: medium-high. Curated chains beat dumping 40 videos in a list.
For a channel like yours: stop building giant playlists as your session strategy. Hand-pick the strongest next video per upload with the Series link. Quality of the next click beats quantity of the list.