A lightweight YouTube client for Linux, without requiring an API key.
In most videos I watch the sound cuts off the last 20-40 seconds. It seems the longer the video, the longer the cutoff. (Since I usually watch at 1:33 or 1:46 speeds, I don't know if it happens at normal speed as well). 
This issue appears to be discussing a feature request or bug report related to the repository. Based on the content, it seems to be resolved. The issue was opened by ghost and has received 2 comments.