It’s no secret that the Nintendo Switch can run Linux and in fact, usable Linux environments were up and running as early as April 2018 when the ShofEL2 exploit, making use of the bug exploited by fusée gelée, was released.
Moving on to last May, L4T Ubuntu was released which is a Ubuntu 18.04 LTS-based Linux distribution intended for general usage and now, it has received a massive update with many highly-requested features.
As per its changelog, Switchroot‘s L4T Ubuntu 2.0 comes with:
Support for LP0 sleep mode (this should make things a bit lighter on your Switch’s power management)
Improved Bluetooth Joycon support
Numerous fixes in relation to the touchscreen, charging, SDCard, audio, docking and pin muxing
Ambient Light Sensor support (this needs some further work in the user-mode)
You may read more about L4T Ubuntu and view its installation instructions from this link. The L4TUbuntu image download link may be accessed from this link (MEGA) and a Google Drive link is available a few replies down.