What launcher do you use? I have to go through three screens just to toggle on/off data, and I can't customize the home screens. I also can't seem to close all apps at once.
pretty sure I use the stock android launcher. Going through three screens to toggle off data is what I do as well (scroll down menu, top right bar, settings, data). There's probably a faster a way but since I don't use mobile data I've never even had data on.
Are you talking about widgets for customizing the home screen? There's plenty of stock widgets and they'll update depending on what apps you get.
When you click the windows button in the bottom right you'll get the apps to open up but as far as I can tell you have to close them one at a time.
There may be better launchers out there but I wouldn't be able to help you on that one sorry :/