Boxes (GNOME)★★★☆☆A simple GUI wrapper around Linux’s built-in virtualization support. It makes simple things easy, but to adjust advanced settings you either need to edit config files manually or use another GUI.
Geary★★★★☆Really lightweight but still modern, so it’s a good choice on lower-end hardware. Basic IMAP features, good for most day-to-day email use. Needs GNOME for setup.
GNOME Web (aka Epiphany)★★★☆☆A rare WebKit browser for Linux. Handles the basics, but it’s specifically designed for GNOME, and it’s limited in what it can do around websites. Well-suited for PWAs, though!
NewsFlash★★★★★Clean, stable, fast, free, no-clutter and no-nonsense RSS/Atom newsfeed reader for Linux that optionally syncs with multiple services.