For what I could find you're not alone. However, if you need the Nvidia Control Panel, it's in the Windows Control Panel. Right clicking on the empty area of your Desktop should also have the option by default. The latter can be turned on and off in the Nvidia Control Panel by choosing Desktop in the upper Menu Bar checking/unchecking "Add Desktop Context Menu". The Notification Tray icon should be in the same menu, for some reason or another it isn't there in my system either.
Since AH is the only game I play, I don't actually pay any attention to the Nvidia Control Panel. AH is designed to work at the default settings so I minimise all the features I don't need.