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I'd absolutely recommend Solus for a newbie.
It offers great out of the box experience, easy installation of drivers, most of the stuff is kept at very current versions. It's also very stable, and hassle-free. Unlike Arch, Solus 's philosophy is to offer an experience that doesn't require manual intervention between updates.
That also makes it more friendly than Ubuntu, because upgrading between major Ubuntu versions rarely is hassle-free. The only guaranteed way to have a hassle-free experience on Ubuntu, is to do a clean install, whereas Solus is rolling. You install it once, and just update it periodically (new updates are released once a week, usually on Friday / Saturday).
The repositories contain all the major stuff needed by most people. They are small however, so it's just a matter if they satisfy your needs. They absolutely do satisfy mine.
For extra apps, there's also Snap, AppImage and Flatpak support. Here's an example catalogue of AppImage, Snap and Flatpak packages.