Please verify your device in safe mode for 24 hours to diagnose the issue exactly if the third-party apps cause the issue or the device.
Safe mode to check if added apps are causing problems. This mode only loads basic system software and allows you to disable third-party applications.
1. After turning off the device, turn it on.
2. Once the Samsung logo has started, tap and hold the volume down button.
3. When the home screen appears, the safe mode is displayed in the lower-left corner of the screen.
Keep your device in safe mode for 24 hours.
If the device works well in safe mode, the problem could be with third-party applications installed on the device. Uninstall them in the Settings >> Apps >> show all apps >> Tap on the apps and uninstall them.
How to deactivate safe mode.
1. tap and hold the power button.
2. Tap Restart.