Newpipe allows you to bookmark any playlist on YouTube. You don't even have to subscribe to that channel. This can be useful for video courses.
Here is one that I bookmarked.
Ecological Civilization (Video Series)
https://www.youtube.com/playlist?list=PLGyDELJdHq36Pl6FtVu7V75OIF04SMW-5
Ecological Civilisation: Beyond Consumerism and the Growth Economy – Free Course
Welcome to the Ecological Civilisation series, written and presented by Dr Samuel Alexander, co-director of the Simplicity Institute. This series will be gra...YouTube
