Factory reset

To get new phone experience without spending money.

Check the battery usage.
Check which app is causing most battery consumption.
If there is a third party app in top 10 battery usage app then uninstall that app.

It should make significant difference in heating issue.

Else, turn off fast charging or super fast charging. Turn on battery protection which will stop charging your battery after 85%. This will also keep the temperature low for battery.

Heating, use power saving mode in summer.

Don't do updates frequently.

Use early morning or mid night time for updates, reset.

Leave the phone alone for 4 hours after Updates or reset.

Room temperature must be below 25. Avoid updates or reset if higher.

Giving 4 hours of time after updating the phone helps your phone to do background work and optimisation, and cool down.

Install app one by one but make intervals like 15 minutes for each big apps.

Yes offcourse. For better performance of your's device. If you like please accept as a solution it's help to others users also, click on 3dots in my reply section and click on accept solution. Thanks.

Check using safe mode, if any app creates issue. So many apps running background may cause. clean memory, add unnecessary apps to sleep.