I'm getting very frustrated. I just upgraded to a Galaxy S25+ from a Galaxy S21. Most apps and setups have been easily transitioned, BUT I've tried everything, unsuccessfully, to get my Samsung Calendar app to show full-screen alerts in the "medium" or "strong" setting. The alerts DO work, BUT they will not display a FULL SCREEN alert, which is something that is very helpful to me. Is it possible there is an outside app that may be preventing the full-screen alert from working? I've checked everything, but I'm obviously missing something. Please help.
To manage all your screen alerts, swipe down from the upper right side of your screen. Hit the gear, then the spyglass , type in full screen enormous will pop up choose full screen alerts. Make sure your calendar is one of them that is turned on. Then go back one page where you tapped full screen under that you will see advanced choose that and make sure you do not have it set up to show split screen alerts. Make sure they are all turned off. Then go back to the beginning and hit the gear again, move the page up until you see apps, go to your calendar app and make sure you have your alerts turned on and that should solve that problem.
