NewsFlash is a free and open source feed reader for Linux. It is specially designed for GNOME desktop and written in rust. It comes with sync, desktop notification, keyboard shortcuts, tagging and fast search and filtering support. You can also connect your online feed reader account in NewsFlash. Currently it supports feedly, Miniflus, Fever and feedbin. You can also add your local rss feeds here. It also comes with more than 5 build-in themese and dark mode support. You can set the custom fonts and feed update interval.