Thank you for sharing your feedback, for the heat issue kindly note that in the first while after update.
The phone will optimize and adapt for the changes in features and usage, when the phone heats up follow the below steps and check them:
1. Turn off the Wi-Fi, GPS, Bluetooth, and other connectivity when not in use. 2. Avoid using maximum screen brightness. 3. Closed unused applications. 4. Avoid using apps on mobile data and playing graphic-intensive videos or games for a longer duration. 5. Always use a genuine Samsung charger for your device. 6. Avoid using your phone while charging. 7. Uninstall unused applications from the device.
