I'm a composer and if I happen to want to make sheet music, which rarely happens, I just open Musescore.

Most of the time I'm in bitwig, recording things in real time and editing things around, I barely use the midi roll.

I don't find the sink analogy apt. It's more like a grill. It's something specific that you might want to go to, and if you do, then you go there and you do that, outside the kitchen.