Definitely this. Manjaro is out-of-the-box ready, but based on Arch. Manjaro stable is also two more testing steps away from Arch, so the packages are less likely to cause issues. And there are four sources for software: Manjaro repos, the AUR, flatpacks, and snaps. I have never been in a situation where I could not install the latest software via one of those routes. I ran Debian for years and often ran into situations where new software was just not installable due to library incompatibility, etc. Manjaro feels like a Swiss Army knife in comparison.