
In 2019, three operating systems share the bulk of global market shares. Software compatibility varies greatly from one environment to another, leading to sometimes constrained technical choices for both professional users and individuals.
Access to security updates, license management, and interface customization do not follow the same logic depending on the platform. Some major features, which are expected, remain absent or limited on one or more of these systems.
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2019 Overview: Windows, macOS, and Linux at the forefront of operating systems
The landscape of operating systems in 2019 can be summed up in three names: Windows, macOS, and GNU/Linux. Windows 10, Microsoft’s flagship, dominates the competition with nearly 60% market share on PCs as of June 2019. This supremacy is not a matter of chance. It is rooted in decades of corporate presence and software compatibility that leaves little room for doubt. The end of support for Windows 7, scheduled for January 14, 2020, accelerates the massive migration to Windows 10, solidifying its throne.
On its part, macOS Catalina, Apple’s latest evolution, powers about 12.5% of personal computers. This system appeals due to its perfect integration within the Apple ecosystem, a significant advantage for graphic design or multimedia management. The coherence between hardware and software, a hallmark of Cupertino, ensures a smooth experience but imposes a closed framework.
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GNU/Linux, for its part, carves out its own path. With its 2% market share on desktop computers, it stands out for the range of its distributions: Debian, Ubuntu, Arch Linux, or Red Hat, each designed for specific uses, from classic desktops to technical servers or development stations. Technical professionals and developers appreciate its flexibility, open model, and the vibrancy of its communities. This comparison of the three operating systems in 2019 highlights the coexistence of distinct logics, ecosystems, and philosophies. Technological choices shape usage, impose constraints, or open up perspectives depending on the professions and preferences of each individual.
What are the daily differences? User experience, security, software, and specific uses
Let’s get concrete: the user experience varies radically from one system to another. Under Windows 10, the familiar interface, refined over the years, is easy to tame. The Start menu, shortcuts, and window management cater to well-established habits, ideal for both office work and gaming.
macOS Catalina, on the other hand, focuses on clarity and elegance. The deep integration with all Apple devices, the fluidity of animations, and overall stability attract demanding users, especially in image and sound professions.
In contrast to these two worlds, GNU/Linux plays the customization card. Distributions like Debian or Ubuntu offer nearly total configuration freedom. This flexibility, highly appreciated by experienced users, does require a genuine commitment to learning. For developers, system administrators, or researchers, it is a playground that allows them to tailor the environment to their specific needs.
The issue of security generates marked differences. In 2019, Windows 10 faced 1,111 vulnerabilities, compared to 3,067 for Debian. But these figures do not tell the whole story: the variety of uses and the frequency of audits impact the statistics. The open model of GNU/Linux allows for quick patching of vulnerabilities by the community, while Windows, a prime target for massive attacks, must ensure the protection of a heterogeneous and gigantic fleet.
Now let’s talk about software. Their availability proves decisive. Microsoft Office is tailor-made for Windows; on macOS, there are high-performing alternatives available via the App Store. On GNU/Linux, users rely on a varied palette of free solutions, but some proprietary tools remain hard to access. For specific needs like professional video editing or the latest games, Windows and macOS often retain preference, even as the open-source scene becomes more active and more software arrives on Linux.

How to choose the operating system that best suits your needs
Choosing an operating system is not a decision to be taken lightly nor merely a matter of taste. Above all, it is about identifying your main uses.
Here are the main criteria to analyze to guide your choice:
- Compatibility with the software and tools necessary for your activity
- Frequency and simplicity of security updates
- Flexibility of interface and feature customization
- Hardware ecosystem, accessories, and integration with other devices
- Learning curve and desired autonomy
For professionals, compatibility with specific office tools and ease of update management often lead to Windows. Its dominance, with nearly 60% of personal computers running Windows 10 in 2019, reflects a reality: the majority of business software and applications are optimized for it.
Creatives, whether working with image or sound, often favor macOS Catalina. They seek unwavering stability, integration with the rest of the Apple ecosystem, and graphic performance that meets their demands. Synchronization with the Apple Watch, management of AirPods, hardware consistency: all these advantages make a difference in daily use.
For technical profiles, GNU/Linux distributions like Debian, Arch Linux, or Ubuntu stand out due to their flexibility and code transparency. Package management, the principle of free software, and the option to choose a rolling release version attract developers, administrators, and researchers. This adaptability requires personal investment but allows for the creation of a tailored environment.
Hardware should not be overlooked: the wide range of laptops running Windows, the specific architecture of Apple machines, compatibility with Intel, AMD, or Apple Silicon processors… All these elements must be considered, not to mention the management of accessories and the potential evolution of your needs, especially if connectivity or artificial intelligence come into play in the medium term.
Ultimately, each operating system imposes its own rules of the game and opens its own possibilities. Between standardization, creativity, and technical freedom, the decision arises where usage and ambitions intersect. It remains to be seen, for each individual, which environment will best support their daily challenges and their desire for innovation.