Re:Pixel smartphone camera review: At the top
by DiabloD3 on Wednesday October 05, 2016 @03:58PM
(#12647242)
You don't, and it also offers to uninstall updates when disabling built in apps.
It also stops their services, and whatnot. It wastes room inside of the ROM partition, but not inside of the user data partition.
While I don't think you can properly "uninstall" Google+ and Hangouts, you can "disable" them, which makes them inaccessible. I don't think you get updates pushed for disabled apps, either.