In Settings/Device care, my only choices are Battery, Storage, Memory, Security. In the drop-down the choices are Auto optimization, Auto restart, App issue history, Show icon on apps screen, About Device care.
I have gone through the large apps and cleared caches as well as installed an app called Cleaner and file manager and used all of its tricks. After all that I reclaimed about 1.5G.
I also deleted two apps tagged as having problems in the past two years, but other than their reported memory usage, I've gained nothing.
I am using a Galaxy Tab A SM-T380.
I now have Developer options in the Settings list, but nothing changed within Device care. Same options as before and no Advanced. I am using a tablet, not a phone. Does this make a difference?