What should I learn before switching to Linux and customizing my desktop?

Drivers depend heavily on the hardware and distribution. The easiest path is usually choosing hardware with good Linux support, since proprietary graphics hardware can require extra repositories, packages, or configuration. Before switching permanently, test your actual Wi-Fi, graphics, audio, Bluetooth, suspend, and external-monitor setup from a live environment.

When something fails, gather information instead of guessing: check recent logs, identify the hardware, confirm which driver and kernel are in use, and read the documentation for your distribution. Make backups and keep a simple working configuration so you can undo changes. Customization is fun, but changing the graphics stack or many system components at once makes problems much harder to isolate.

Start by learning how to repair what you break instead of immediately reinstalling. That process teaches you how the system is organized, which changes are safe, and how to prevent the same problem later. Keep testing risky changes in a virtual machine or on a spare installation until you’re comfortable recovering from mistakes.

For customization, first understand the difference between a complete desktop environment and a window manager. A desktop environment includes many components already, while a window manager usually needs separate tools for notifications, launching applications, panels, wallpapers, and other everyday features. For example, a setup might combine Sway with a login manager, notification daemon, and application launcher. Pick one component at a time, read its documentation, and change only a few settings so you know what caused an issue.

Dotfiles are simply user configuration files, often stored in your home directory. Learn how to inspect, back up, and restore them before copying someone else’s configuration. Other people’s dotfiles can be useful references, but they may depend on different software or paths and can be difficult to troubleshoot blindly.