Can’t find playlist in desktop version

I’ve been looking for a way to use/add songs on the playlist feature for a while on the desktop version but it isn’t there. I’ve found a few topics about a nightly version but I don’t know much about it. Is there any current solution for this? Why is this update taking so long?

chrome://flags/#playlist

It is early WIP, so it is pretty basic and it is used in the sidebar.