QuiteRSS was removed from the official repository and added to the arch AUR in the 2022-12-06 Stable Update. A package that has been removed looks like the below line in the Raw Report (link just above the poll). RawReport: #822.
quiterss 0.19.4-2 -
Perhaps there is something helpful at the AUR archlinux web page for Quiterss.
I switched to RSSGuard which is in the extra repository. It wasn’t too difficult to convert and learn the UI and shortcut keys. Just export your feeds from QuiteRSS and import to RSSGuard.