There's basically zero thought put into it. It's annoying to click, on sidebars it lives in a very weird place, and if you have a menu bar already then why do need the junk drawer hamburger menu?

To me it signifies that the application is under thought without a clear goal or vision.

But also, look at this screenshot from the system monitor:

It has both a hamburger and an ellipsis menu. What is that about? That's in addition to the tools drop down.

To me, it's just not cohesive. There's not really any design intention behind it. It's simply where features that don't go elsewhere get put.

Edit" changed screenshot to an easier to see one