In my experience the Bass track can have tremendous influence on the feel of a song. I’m not sure how it works for you Kevin but I don’t usually hear the Bass line in my head when I first imagine a song too write. For that reason my first bass lines are usually very simple maybe 1 to 5 or hang on the root of each chord. I then find when I listen to the song I’ll hear Phantom notes where a bass note seems to belong and I get a better sense of the Rhythm that the Bass line should support. Sometimes it’s more about the spaces I leave than the spaces I fill but it seems that you have that part figured out.