20
Lemmy RSS: retrieving more than 20 items
(lemmy.blahaj.zone)
I don't think RSS is suited for getting more than just the latest entries in a feed.
What you're looking for is handled by the API which includes pagination.
You can get 50 items at most with limit=50
. Try
https://lemmy.ml/feeds/c/lemmy_support.xml?sort=New&limit=50
Support / questions about Lemmy.