I installed a custom OS on my nine year old Galaxy Note 2. Did not install the Gapps package, which is a separate component that installs the usual Google garbage. Phone runs fantastic and no Google crap/spyware on it at all. To be able to install apps on it one simply installs an app called “Aurora Store” which allows you to download and install whatever apps you need from the Google Play store. It acts as a go-between between your phone and the store - no Google account required. Works flawlessly. Highly recommend you give it a shot.
That is good to know. Thanks