The current situation wrt https://feeds.centos.org is that it was started as a quick/easy way to generate .xml files for RSS feeds, for people willing to just subscribe to some feeds to know when some packages land for Stream 8 and 9 (no mail is sent to centos-announce list for these)
It's relying on the `repo-rss` script, from yum-utils, on CentOS 7. But it seems that such tool doesn't exist anymore in dnf-plugins-core (providing yum-utils) and so is absent in CentOS Stream 8 and Stream 9.
So the question : should we just stop that service when CentOS Linux 7 will be EOL in June 2024 ? Or are there volunteers to port that tool/script upstream to python3 and have it included in a dnf-plugins-core (or a parallel package in Epel 9) ?