Apple in the latest iOS 17 public and developer betas has added support for saving full-page screenshots as image files in apps where the system supports the feature.
Apple in the latest iOS 17 public and developer betas has added support for saving full-page screenshots as image files in apps where the system supports the feature.
Maybe try turning off mobile data for FaceTime. It’s an option under mobile / cellular settings.
For iMessage I unfortunately don’t think you can do anything but turn it and leave it off entirely.