I'm facing some heating issues
When? During Playing games/using GPS/charging is quite normal. It could be particular app causing this. Find out who is running behind and consuming much battery
Report the issue directly to OnePlus Developers as a Bug report.
And also contact OnePlus support directly to see if they have more information on your issue. Scroll down the page for contact and online chat details.
IDEAS 2.0 – Coming Soon
by Zach X., 2020-09-21