Hi HarmanB123,
Thank you for reaching out to Microsoft Community. We are sorry to hear what happened about what happened to your Surface Pro 7.
As of now, we don't have a known issue on this overheating when charging for the Surface Po 7. May we ask if by the time you unplug the charger from the device, does it then cools down?
The magnesium body of the Surface is designed to absorb heat and cool down quickly which is why you are noticing fast cool down after you stop using the device or charging. With that, your device may become very warm during normal use compared with other older plastic OEM brands with larger fans and more space between the processor. Surface devices complies with the user-accessible surface temperature limits defined by the International Standards for Safety (IEC 60950-1 and IEC 62368). However, if you are local to a Microsoft Store you can visit for a diagnostic checkup and determine if the machine is running at above normal operating temperatures.
You may want to do this steps also on the device:
1. Run Surface Diagnostic Toolkitand check Windows Update
2. Update drivers and firmware
Check what is the current OS Build of your Windows version by going to Settings > System > About.
Go to Download driver and firmware for Surface, choose Surface Pro 7 then click Download on the next page.
Choose the .msi file that matches your current OS Build and click Next.
After downloading, run and install the .msi then Restart.
If this answer your question, we highly encourage you to inform our Community by clicking on Yes or marking my post as an answer. This will help other members who may have the same issue as you. Otherwise, don't hesitate to update us so we can further assist you.
Kind Regards,
Marrion Y.