Honestly, it depends on what you're doing. Neither is objectively "better" — they're optimized for different things.

**Windows is better if you:**
- Play a lot of PC games (best compatibility, though Linux gaming has improved massively via Proton)
- Need specific commercial software (Adobe Creative Suite, MS Office, AutoCAD, many enterprise tools)
- Want everything to "just work" out of the box with minimal tinkering
- Use specialized hardware with Windows-only drivers

**Linux is better if you:**
- Do software development, sysadmin, or DevOps work (most servers run Linux)
- Want full control, customization, and transparency
- Care about privacy and avoiding telemetry
- Want to revive older hardware (lightweight distros run great on weak machines)
- Prefer free, open-source software
- Like using the command line

**Practical realities:**
- Windows has ~70% desktop market share; Linux is <5%, so support/community questions favor Windows for general users
- Linux dominates servers, supercomputers, Android (which is Linux-based), and embedded systems
- macOS is a third option that splits the difference for many people

If you tell me what you actually want to do with your computer, I can give you a more useful recommendation.
