The Snapdragon 888 is Qualcomm's latest flagship-grade mobile processor, and as such is only available in a tiny handful of phones to date. The first 2 of these, the iQOO 7 and Xiaomi Mi 11, have already exhibited thermal-management problems while in the hands of a reviewer. Hopefully, this is not a sign of things to come for the rest of 2021.
https://www.notebookcheck.net/A-Xiaomi-Mi-11-vs-iQOO-7-benchmarking-video-may-be-an-early-hint-of-overheating-issues-with-the-Snapdragon-888-SoC.515785.0.html