Ubuntu or Kali Linux for a CS Student in Cybersecurity and CTFs

A Computer Science student working in cybersecurity seeks advice on choosing between Ubuntu and Kali Linux as their main OS. The student uses the system for CTFs, security labs, offensive/defensive security practice, as well as regular CS coursework, programming, and daily tasks. They note Ubuntu is stable and beginner-friendly for general development, while Kali is specialized for penetration testing and security tools. The post requests input from others in CS, cybersecurity, or CTF communities about their preferred setups.