One of the most user-friendly Linux distros I've ever used is also one of the most secure

Aurora Linux is a new immutable distribution based on Fedora Silverblue with the KDE Plasma desktop that emphasizes ease-of-use, built-in GPU drivers (including Nvidia and AMD), a unified app store called Bazaar, sensible defaults (including an enabled firewall), and atomic updates; the article recommends it for new Linux users and suggests minor improvements such as a preinstalled office suite and GUI boot loader.