Ubuntu 20
See: Ubuntu 20.04 LTS
TLDR: Ubuntu 20 refers to the releases from the Ubuntu operating system family in 2020, including the long-term support version Ubuntu 20.04 LTS (Focal Fossa) and the interim release Ubuntu 20.10 (Groovy Gorilla). These versions introduced enhanced hardware support, improved security, and updates to desktop and server functionalities. With a focus on stability and modern features, Ubuntu 20 catered to developers, enterprises, and general users alike.
https://en.wikipedia.org/wiki/Ubuntu_version_history
Ubuntu 20.04 LTS, released in April 2020, brought significant updates, including the Linux Kernel 5.4, which improved compatibility with modern CPUs, GPUs, and hardware peripherals. The inclusion of GNOME 3.36 streamlined the desktop experience with a refreshed interface, performance optimizations, and usability features like a dark mode toggle. Security enhancements, such as Live Kernel Patching and the inclusion of ZFS as the root filesystem option, made it a robust choice for critical applications.
https://ubuntu.com/blog/whats-new-in-ubuntu-20-04-lts
The subsequent release, Ubuntu 20.10, introduced additional features tailored for interim users and developers. With updates to the Linux Kernel 5.8, it further expanded hardware support and optimized performance for newer devices. Both versions supported modern development workflows with tools like Snap, Docker, and Kubernetes. Together, Ubuntu 20 releases maintained Canonical's commitment to providing a versatile, secure, and cutting-edge operating system for diverse computing needs.