Changing your background is a straightforward process that can be done in a few seconds.
Different styles can drastically change the "vibe" of your PC: How to Change Desktop Wallpaper in Windows 10
Choose a simple, distraction-free colour for your workspace.
Use the Choose a fit setting to decide how the image occupies your screen. Common options include Fill (stretches to cover everything), Fit (shows the whole image with borders), or Span (best for multi-monitor setups). Popular Wallpaper Styles for Windows 10