Lemmy generally attracts the same kind of person that would also use Linux. Both of them are open source and community driven alternatives to software otherwise provided by large corporations and milked for every last cent. Both of them require just a bit more knowledge in order to comfortably use them. Linux with all the distro's and desktop environments, Lemmy with all the instances and apps/front-ends. We're very much a bubble here.

Short version, because people wrote books there:

Windows sucks your data and tries to put ads everywhere. Linux is a type of operating system, that is free and open source - everybody can make their version. Thus, there are no ads, and the moment they try to spy on you, community picks up the torches. So, people who know their stuff rally behind linux. HOWEVER. Linux isn't windows - it doesn't support the same programs and needs you to fight off command line anxiety.

Today linux is basically botherless to work with, but even then, I still had to boot up command line to install some old ass drivers or some shit.

Heck, what's more - there's only one/two version of active windows, but there's many linux distributions (which are the "made by other folk" version I talked before), so you can pick the one that fits you. Most folks recommend Linux Mint as it's the most Windows like experience, but if you like chromebooks there's also Peppermint OS, and if you want full versatility there's also Debian.

There are political, practical and aesthetic reasons to choose GNU/Linux as an operating system.

Political Reasons

The Linux kernel, various components from GNU, a large part of the software library etc. are released under Copyleft licenses such as the GNU Public License (GPL), which cannot be revoked. This prevents a lot of evil shit the corporate world likes to do with software. It also menas it can't be taken away; My license to copy, examine, modify and redistribute the Linux source code is irrevocable.

The kernel and much of what goes into a Linux OS these days are largely developed by larger corporations (Red Hat is now owned by IBM) but a lot of the app ecosystem is community driven. A lot of applications in the Linux ecosystem exist because someone wanted the tool to exist, not because someone begrudgingly accomplished something to increase shareholder value.

Practical Reasons

The vast majority of Linux distros are provided free of charge.

The majority of Linux distros are lighter on system resources than Windows; Windows' system requirements have forced a lot of perfectly functional hardware into retirement where they run just fine with Linux.

With a few notable exceptions the Linux ecosystem is free of the ads and spyware built into Windows these days.

Microsoft has a habit of rearranging their UI kind of for the hell of it, meaning constant retraining for users. In the Linux ecosystem, only Gnome is in the habit of making drastic unasked for design changes, and it's very much not a user's only choice.

Microsoft has a lot of monetary incentives to be user hostile. Not a lot of people use the Microsoft Store to search for software because much of the software the userbase wants competes with a Microsoft product, so they aren't found in the store. For example, Edge is the only web browser found in the Microsoft Store. Microsoft will not distribute a product that competes with one of their own. A typical package manager on Linux is full of actual useful software and is the preferred way of managing software on Linux. In fact, Windows is basically the only platform that hasn't managed to make a package manager or app store the default way of handling software.

Microsoft has been eroding the end user's ability to control or even own their devices. Linux does not become unusable for several minutes due to updates the way Windows does. Linux doesn't routinely take away features the way Windows has been doing lately.

Aesthetic Reasons

Windows is becoming less customizable as time goes on. Linux is only getting more impressive. It's not difficult to make the experience YOU want on Linux. Windows doesn't let you put the Taskbar on the side of the screen anymore. Get a load of this, I'm using Fedora KDE right now. By default there's a thing that works very much like the Start button on Windows; icon in the lower-left corner that pops up a menu from which to launch applications. I can right click that, click "Show Alternatives" and I can have a full screen thing similar to the MacOS launcher, a smaller cascading menu type thing that works like the Windows 85 Start menu, or by default a two-pane thing that's more typical of Linux systems. It's just so much more flexible.

1. Windows is a privacy nightmare. The OS is constantly sending data to Microsoft while being used.

2. Windows hogs resources. If you don't shovel money out for new hardware every few years, your computer will run like shit.

3. Windows is full of ads.

4. The majority of malware is written for Windows. Not really a selling point for me, but it's a bonus.

5. Linux is free.

6. Linux doesn't force updates. You update when you want to, and it takes less than a minute to do.

Think about why you joined Lemmy. Reddit has been getting greedier and greedier, so you left to a place where the grass is greener. The same thing is true with Windows and Linux (and Linux is also much more big and mature than Lemmy). It attracts the same kind of people.