Fedora is way more involved than Manjaro, and I wouldn't recommend it to newbies.
First time I touched Fedora (that was 1,5 years into my Linux journey), I immediately borked it very hard when trying to install Nvidia drivers. For about a year that I used it since, it has shown itself as a generally stable, but involved distro that allows the user to shoot themselves in a foot and doesn't shy away from turning folks to terminal. So, it's decent for experienced users, but it's certainly not for everyone, and especially not for newbies.
So, what do you propose for newbies? Ubuntu, with all its dumpster fire? Mint, that, for all its merits, stubbornly refuses modern frameworks? Debian, that will have a newbie drown in documentation? Manjaro isn't perfect, and there are negatives to write about it as well, but it relies on Arch for good reasons that are often omitted. Arch is truly community-based, rolling release, highly supported, and very fast, which allows to bring all the recent niceties of Linux to any and all machines, no matter how close they are to the potato and how new the user is to the ecosystem.