For the love of all that's saint, can we please stop recommending Manjaro to people, especially newbies?

It's not really a preference thing, Manjaro team did plenty of questionable stuff with it, as in DDoSing AUR, mind you, twice, or letting their server certificates expire, also more than once.

It also routinely shows more stability issues that led to the infamous "I swear to god, if it's Manjaro again..." in AUR discussions. Apart from AUR problems, they also shipped alpha quality things to their users, like this and this.

I've used Manjaro myself for around a month. If you are treating it as a regular Arch installation, you will break it.

If you want something up to date, but more stable than Arch, just use Fedora. If you insist on it being Arch-based, use something like CachyOS. Or you can read the wiki and install Arch itself. Arch is a DIY distro, after all.