Linux is really a superfamily of loosely-related OS's (called distributions). Arch and Debian are 2 of the more common ones. Arch in particular has a reputation of being really beginner un-friendly, particularly in that, to my understanding, you have to build the OS yourself.

There's also the caveat that many Linux distributions end up sharing/copying code from each other, so you end up with a kind of "OS lineage." The most common distribution, Ubuntu, is copied from Debian. And then the most beginner-friendly distribution, Linux Mint, is copied from Ubuntu. Arch, to my knowledge, doesn't copy code from elsewhere, so much of the advice given from users of other distributions won't apply to Arch (hence the meme, "I use Arch btw")

Anyways, the real advice for a Linux beginner is to stick with a beginner-friendly distribution: either Ubuntu or Linux Mint or Pop!_OS. Most or all distributions have various "flavors," which are basically like how the OS looks. I think the real difficulty is picking a flavor that you like. I personally like the look of KDE Plasma (IMO resembles Windows 10 the most), so my personal recommendation is Kubuntu, which is the KDE Plasma flavor of Ubuntu