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Arch is not really a DIY distro and certainly not for noobies. Those saying so are either naive or a troll. Arch is an excellent resource and it has its uses. Arch assumes you have a full understanding of a POSIX operating system and all components. Arch has an encyclopedic wealth of great information. What Arch is not, is beginner friendly, or remotely tutorial. If you try to use Arch to learn how a POSIX system works, you are going to have a very bad experience. This is about like me handing you the encyclopedia and telling you to go learn physics.
For a beginner, start with Fedora or Ubuntu because they won't wreck your system. Fedora is on the cutting edge while Ubuntu is stable — which only means that most packages are frozen and will not stay updated in the latest version. It means many things are old and outdated, but you can write a high level script that will never be broken by some change that happens in a software library in a random update. Windows is also a stable (outdated) operating system so that companies can write software that will not get broken because they fail to maintain it regularly.
Gentoo is a tutorial distro. It is the compile everything yourself and learn how everything works distro. Gentoo must be kept up to date, but if the Portage package manager needs input from the user, the Gentoo packagers layout the details in a very approachable way, assuming you are competent enough to make it through a Gentoo installation in the first place. Most people take days to weeks to make it through their first full Gentoo installation and configuration. This is guided, but there is an enormous amount to take in and figure out. You'll be compiling and configuring everything from the bootloader and kernel all the way up. If you are at this level of competence and understanding, where you can run Gentoo, THAT is when you should consider running Arch. Arch is basically Gentoo, but without the compiling and configurations. All the components are easily accessible in binary form.
If you run Gentoo for awhile and you really want to understand what the packagers are doing on an even deeper level, then do a Linux From Scratch build (LFS) this is a thing too.
If you want to learn in situ and actually use a system, use Fedora, get The Linux Bible if you want to learn sysadmin, and leverage the RHEL documentation for more advanced stuff because REHL is the original distro, and where a lot of the core kernel devs come from. RHEL is down stream of Fedora.
Every distro has a distinct reason it exists. It is foolish to turn them into team sports like brands. A key part of the learning curve is figuring out why each distro exists and leveraging that knowledge. I use them all for various reasons and know which to use for documentation. I may use Fedora as my base, but I have Arch, Ubuntu, and Gentoo that run in containers on my host machine, and have run all three as my base system in the past.
Arch is not basically gentoo. Gentoo is about as close as you can get to vanilla Linux while still being a distro. Arch is pretty opinionated about what defaults should run, gentoo is explicitly flexible. Also the compiling on gentoo thing really needs to stop, there have been binary kernel packages for ages, even before the recent improvement to binary packages. The gentoo installation in someways is easier than the arch installation, as long as you use defaults and customize after first booting up, and if you really want to customize stuff, portage is an absolute beast.
Arch is a foundational distro like Gentoo. It is not fully configured and requires considerable configuration to be secure in ways that are not clearly defined. Pacman is an abysmal package manager for anyone short of a CS degree. Changes are regularly made that assume considerable knowledge of systems and otherwise require in depth reading. This often involves peripheral packages of no interest the the end user and where an incorrect choice may require loading from backups.
In the last 10 years I have run most of the major distros. Arch is the only time I have ever had to actually use my backups. The third time, I just moved on. Arch does a terrible job of describing these types of changes, and it is deeply frustrating to actually use Arch for some detailed project, need to install a package, have some tangent peripheral update that requires input, and get stuck in a rabbit hole of research because of the tangent. Arch will not make anything about this easy or clear like with Gentoo. Arch will dump you into some dev's magnum opus of a wiki article that still does not layout the issue you are faced with. That article will put the user into a bottomless fractal links chasm of articles as a result, because nothing about Arch is tutorial.
Yes Gentoo has some binary packages. People run RHEL and Debian-stable as a desktop; they run Fedora as a script server; they use a steamdeck as a desktop. What a distro is known for is just a stereotype. It still applies and the exceptions do not change the primary use case.
The important choice right now IMO is how you protect your bootloader, but I'm a foolish intermediate level user at best. I do my best to tell people the counter point to the evangelical believers distro. It was by-far my worst experience with any distro and pushing beginners into that experience is downright toxically counter productive.
The best way to keep an Arch daily driver stable is to use a CoW filesystem like btrfs or ZFS and use a pacman hook that takes a snapshot before package installation or updates. If you run an update or package install that breaks something in an inconvenient way 20 minutes before you have to be on a call using said system you just revert to the snapshot, reboot and you're rolled back. I've run Arch as my daily driver like this for 4-5y now and can count the number of times I've needed to roll back like this on one hand (mostly I just don't run updates when I'm under time pressure.) Arch really doesn't break in a major way all that often once you're over the first 6-9mo of the learning curve, ie: it usually stops breaking once you stop fucking around and poking things while you're learning about them.
I wouldn't recommend Arch as a daily driver to someone who isn't generally competent at linux admin and troubleshooting, it's a handful for people who aren't up on their skills yet. On the other hand it definitely will help you develop those skills, that just takes some time. A snapshot and rollback system gives you the freedom to break most things with a reliable way to roll back to a known good state afterwards.