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
I expect it’ll probably be relatively boring. Trump likely has been coached to hell and back not to say unhinged shit. Of course, he can’t control himself so he’s going to say some unhinged shit, but it’s definitely not going to be to the same frequency and magnitude that he normally is.
Meanwhile, Biden is going to play the “Trump is unhinged, so Republicans please vote for me” strategy, which is going to be unexciting to both Republicans and Democrats.
I think the debate itself is going to be dull, and what will really sway the population is what the media and social media run with afterward. ie, it’ll be determined entirely by who has the more embarrassing slip-up. God this country is fucked