[figbert]

> You know, like how it used to be with RSS.

That, my friend, would be because it is RSS!

[TobTobXX]

IIRC, think NewPipe actually requests the channel pages and parses the html.

[lolinder]

It has both. The RSS method is fast but doesn't have the full video data (it's missing durations, for example). The parsed version is slower but complete.