On the RPI screen, top right, there is a bluetooth "icon" you can click on it & make bluetooth connections to your devices. I've used that with various success. However, I just noticed under the "pi" icon/preferences menu, there is also a bluetooth manager. Clicking on that brings up another bluetooth icon next to the previously described. Are these the same thing? If not, what are the differences? Is there a reason to choose one vs the other?