Lo-fi (aka low-fi; short for low fidelity) is a music or production quality in which elements usually regarded as imperfections of a performance are audible, sometimes as a deliberate aesthetic choice.
The standards of sound quality (fidelity) and music production have evolved throughout the decades, meaning that some older examples of lo-fi may not have been originally recognized as such.
Lo-Fi mixes are often used as relaxing ambient music that can be left open on the side while you work on a project, or played in the background at the end of a long day to recharge.
Coding can become your best friend but sometimes while solving questions, you get frustrated when you don't get the optimized algorithm to solve the question and at that place, Lo-fi helps to get calm and enjoy the process.
Study or Focus Lo-fi
Sad Mood Lo-fi
3 am Lo-fi
Chill beat Lo-fi
Personal Favourite: Here
For more Genre: Try searching on YouTube for eg:
Sad mood lo-fi, coding lo-fi, sleep lo-fi, frustrated lo-fi.