I cannot delete apps from my iphone 15 pro max

Check at Settings > Screen Time > Content & Privacy Restrictions > iTunes & App Store Purchases > Deleting Apps, and make sure it is toggled on. If you device is part of a Family Sharing group, then the Organizer would have control over that setting.

• Are you trying to delete one of the Apple installed apps or a third party app?
• What happens when you touch and hold on the app you want to delete?
• Are you given any options at all?
• Post a screenshot of what you see if you are given some options after the touch/hold on the app.