Ever since I got interested in Linux and Open Source software I've seen a lot of people claiming Linux as some kind of leftist thing, it never sat right with me.

It just seemed right that free software was a libertarian thing, solely based on the most basic principles of development and everything about it, maybe I'm just being autistic and most people just see that as a meme but based on the kind of people that use linux nowadays you can't really tell...

I've also noted that a lot of misguided takes come from this notion that Open Source software is somehow leftist or should follow left-leaning policies and ethics.
Which is really dumb and sucks.

Linux ISN'T and CAN'T be compatible with leftist ideology.

Open Source software basically has nothing to do with leftist ideals or goals, for very good reasons. Notice how everytime left-leaning ethics are applied to Free software development, it always results in embarrassing things such as ridiculous codes of conducts, tranny tiranny (look what happened to the hyprland dev), etc, things that have nothing to do with what FOSS stands for and are only causing harm to FOSS and technology in general.

Cultural marxists will unironically be the ones arbitrarily banning software from their repositories (look up nixos polymc) and still claim that YOU'RE the ebil authoritarian Nazi. Holy irony. I guess these people really want to force Linux into becoming an authoritarian communist/liberal regime.

The same soydevs (most of them aren't even developers) that force this kind of stupidity are also mostly the ones behind shit-tier memes such as Rust and Wayland that are only forced because of community psyops and lies, Wayland users claim that Xorg is bad because it has defunct code and screen tearing. Guess what, Wayland also has screen tearing! And in Xorg you at least get to disable that. This isn't a mere coincidence. Leftism has no place on Linux or free software whatsoever.

Linux already operates on libertarian ideology.

Free software makes use of grey and free markets, that being, decentralized legal distribution of goods (in this case software) by third-parties and maintainers, not necessarily intended by the original manufacturers, with little to no regulation from a government, GitHub (and other Git plataforms), the AUR, other package repositories, mirrors, etc, can be seen as examples of both grey markets and free markets in the context of software distribution. Sharing is caring. Free software also has reeinforcement towards private companies, most notably small organizations such as Mozilla, Docker, SUSE, etc.

Grey markets, free markets, private ownership, private companies, economic freedom, decentralization, personal autonomy, notice how these are all things leftist love to hate, and yet, are essentialities to Linux.

What should/does Linux actually stand for?

As mentioned earlier Linux already vastly operates within right-libertarian ethics and ideals and should continue to do so, reinforcing essential ideas such as decentralized grey and free markets, private property, personal and economic freedom. and HAS to stay this way otherwise it's gonna come trumbling down and come to a very slow, painful and innevitable death.