Lo-Fi is in that wierd category of synth and drum based music with mid and hi-fi and, I assume, retro/synth/vaporwave. However, while there are many things of meme orient that point to such music, I'm one of those weirdos that likes Gaelic music and DnB for the repetitive nature. I like the beats, I like the over all tone, and I like where it puts me mentally.
For the most part though, while it can be synthy, the instrumentation of lo-fi is typically slow / weedy, consisting of jazz or hip hop beats with similar instruments.
So, consider this a Lo-Fi megathread.
For note, anything that fits what you think of when you think of Nujabes likely fits in lo-fi, as does nujabes himself
Rest In Peace Jun Seba