When switching the library/server in plexamp you have to long press the currently selected library, this feels extremely weird on desktop and since their is no hover effect you are also never sure that you long press the right spot which makes you stop your press to early and try it again at a slightly different spot.
I think on desktop the menu to switch the library/server should open with a simple click, it would also be nice if there was a hover effect there so that you know where you can click. On mobile the long press is perfectly fine and also prevents accidentally opening the menu this is just about desktop.