Installed the September security patch today on my Note 20 Ultra and the device is heating up The same thing happened when I installed the February update but it was fixed by a later update. Now the issue is back.
It cost around Rs. 5000. (I bought another skin for the camera bump so I didn't get any extra amount for shipping) + You have to pay customs when it arrives in SL. It cost around 1300 someting if I'm not mistaken