S21 ultra overheating issue

Thank you for contacting Samsung KSA

dear try to wipe cache partition from the recovery mode
connect your USB headphone or connect your device to pc then turn off your device then press and hold the power button with volume up together for 7 seconds until the phone logo appears then release the buttons, recovery menu should appear to you
select wipe cache partition

When the device heats up while charging the battery
While charging, the device and the charger may become hot. During wireless charging or fast
charging, the device may feel hotter to the touch. This does not affect the device’s lifespan or
performance and is in the device’s normal range of operation. If the battery becomes too hot,
the charging speed may decrease or the charger may stop charging.
Do the following when the device heats up:
 Disconnect the charger from the device and close any running apps. Wait for the
device to cool down and then begin charging the device again.
If the lower part of the device overheats, it could be because the connected USB
cable is damaged. Replace the damaged USB cable with a new Samsung-approved
one.
 When using a wireless charger, do not place foreign materials, such as metal objects,
magnets, and magnetic stripe cards, between the device and the wireless charger.
When the device heats up during use
When you use features or apps that require more power or use them for extended periods,
your device may temporarily heat up due to increased battery consumption. Close any
running apps and do not use the device for a while.
The following are examples of situations in which the device may overheat. Depending on
the functions and apps you use, these examples may not apply to your model.
 During the initial setup after purchase or when restoring data
 When downloading large files
 When using apps that require more power or using apps for extended periods
– When playing high-quality games for extended periods
– When recording videos for extended periods
– When streaming videos while using the maximum brightness setting
– When connecting to a TV
 While multitasking (or, when running many apps in the background)
– When using Multi-window
– When updating or installing apps while recording videos
– When downloading large files during a video call
– When recording videos while using a navigation app
 When using a large amount of data for syncing with the cloud, email, or other accounts
 When using a navigation app in a car while the device is placed in direct sunlight
 When using the mobile hotspot and tethering feature
 When using the device in areas with weak signals or no reception
 When charging the battery with a damaged USB cable
 When the device’s multipurpose jack is damaged or exposed to foreign materials, such as
liquid, dust, metal powder, and pencil lead
 When you are roaming
Do the following when the device heats up:
 Keep the device updated with the latest software.
 Conflicts between running apps may cause the device to heat up. Restart the device.
 Deactivate the Wi-Fi, GPS, and Bluetooth features when not using them.
 Close apps that increase battery consumption or that run in the background when
not in use.
 Delete unnecessary files or unused apps.
 Decrease the screen brightness.
 If the device overheats or feels hot for a prolonged period, do not use it for a while. If
the device continues to overheat, and you still face the same issue then kindly visit the nearest service center
the link of the service centers:https://www.samsung.com/sa_en/offer/service-centers/