davenna144 wrote:
Why can’t I store the photos on the phone with a TB of storage, why can’t I stop using Google Photos, or how can I
My guess is that you are currently storing photos both on your phone (using part of the 1 TB of storage), and in the Google cloud (using Google Photos synchronization).
Google – Google Photos Overview
"You can sync your library and favorites during setup and your photos will automatically upload to the app."
That would be similar to the way that iCloud Photos works. With iCloud Photos, your photos exist in iCloud (on Apple's servers) and on every iPhone, iPad, or Mac synchronized with iCloud Photos. (Depending on how you have things set up, some of the copies of photos on your devices may be reduced-quality space-saving ones. However, all devices will attempt to keep copies of all photos.)
If you have all of your photos on your phone, or download them there, you could certainly stop using Google Photos – first grabbing photos, then turning OFF synchronization with Google Photos, and finally deleting the copies of the photos in the Google cloud, using a Web browser.
But then your photos would exist only on your phone, and unless you backed them up somewhere else, you'd be one catastrophe away from losing all of them.
There are many threads on these forums from people who didn't value their data enough to back it up, who then had some catastrophe happen, and come pleading for a way to recover their photos. Unfortunately, all too often, the photos are simply lost, and it doesn't matter how much the OP wants them back. The only thing we can do is to advise that "Backups must be made before catastrophe happens. Afterwards is [generally] too late."