Wait i know your name

beansprout and rhine are window managers for river, since 0.4 river requires a separate WM to function

If you think a keyboard focused workflow is for you then go try it! I found it a very gentle and accessible way to use WMs

I have been using Noctalia since their very early days and eventually tried DMS. I found Noctalia to be much smoother and more straightforward, and v5 is also lighter on resources. Worth checking out