What I do not like on Zed or electron GUIs is lack of customization. Older IDEs using sdks like Swing, JWT, QT, GTK etc. allowed user to design its user interface using drag and drop. ie compare older IDEs like eclipse or idea and try to create layout which fills screen with information important for you. And then try to do the same with vscode or zed. I like functionality and speed of zed but UI customization is too limited for me. It might be design choice or sdk limit I am not sure.