Sudden Restart Asus Rog 5

[Indr]

Please tell us some basic information before asking for help:
Model Name: Asus Rog 5
Firmware Version: Latest .176
Rooted or not: Not
Frequency of Occurrence: Just Once after Change the MOBO
APP Name & APP Version (If your issue relates to the app):
In addition to information above, please also provide as much details as you can, e.g., using scenario, what troubleshooting you've already done, screenshot, etc.
========================================
Today I left My Device on table & watching Netflix, suddenly I saw that the Device restarts itself.
Last time when the device restrts on its own, Wifi & Hotspot were broken for no resaon
Received the device on 1st October 2021, today is 27th of October, but this time Wifi & Hotspot are working as before no problem found also battery percentage also same, But really worried why it restarts on its own?
Really frustrated with this kind of Smartphone, really regretted why I chose Asus?
Can anyone face this type of problem after changing MOBO?
Happend just once today, don't know what will happen in coming days?
Attached Screenshot where you can see the restart in battery Graph!!

[FunBike31]

Not much more to say than before.
A hardware failure, this would happen more often but we cannot exclude
Android 11 and Asus Software, very little problem and we would be a lot of affected user
Google software preinstalled, ditto, if they are up to date with RAS at the moment.
Third-party software from the PlayStore, most certainly
or an authorization refused, Android 11 is precisely affected for the refusal of localization of applications in the background, it is necessary to check all the applications which request the localization and to check their authorizations when they are not in foreground.