@uniq hi, well youtube offers rss feed, so you don't really need any tool to make a feed out of a channel.
For example, the feed for BBC Earth is
https://www.youtube.com/feeds/videos.xml?channel_id=UCbwp5B-uDBy-fS4bDA0TEaw
QOTO: Question Others to Teach Ourselves An inclusive, Academic Freedom, instance All cultures welcome. Hate speech and harassment strictly forbidden.