Ubuntu on Nintendo Switch.
Current version is 3.0.0, there is a kernel update coming soon that is fixing a couple bugs so maybe wait until 3.0.1 drops.
Java Minecraft L4T.
That tutorial isn't the best, you need to swap your active java version to java 8 instead of 11.
Controls wise I'm using antimicro to map the joycon inputs to various keyboard and mouse inputs that correspond with MC controls, still fine tuning them. The framerate is a smooth 30 fps with fancy graphics on and a couple of MCPatchers mods, but vanilla textures. This is all without the jetson overclocking, and on a fresh world in a taiga. I haven't tried increasing the clockspeed yet, but it should make things buttery.