5. Long press on each app specially 3rd party and rarely used app>app info>
A. Mobile data> allow background data usage>off
B. Battery >allow background activity >off
C. Notification >disable unnecessary notifications like promotional and unnecessary reminder notifications.
6. Device care>battery >select "optimised and adaptive power saving.
Steps to enable developer option settings >about phone>software information >then u find build number >tap 7 times>then back to settings and at end of settings one new option called developer option click on it and find that option
during charge is sometimes acceptable, but as of now if you feel over heated then switch of for few minutes or charge at flight mode and wait for next update and the same time send feedback to Samsung by using get help section