I need to use 2 Programs for work. They both do have linux-Versions but they behave poorly. They do try to use the tray but in gnome they fail to do it.
Gnome's file manager is horrible (for me). I know there are others but they often "disturb" the look and feel.
And I think the whole concept of gnome is towards touchpad use. I hate that. I know that some extensions help with that but then it starts to feel like an OS with serveral different approaches.