Goodmorning
@Arvin_H I feel your frustration and I can imagine how it feels when the customer support blows you off. Let me be as honest with you as possible. The S22 is for many reasons a great phone, I had the S22 Ultra before my current S23 Ultra. My experience with the S22 Ultra was that for most things its a fantastic phone. When it comes to gaming the Exynos processor inside warms up very quickly depending on what kind of game it is this process can go faster or slower. Cod Mobile has high graphics, in my opinion this processor cant handle Cod mobile properly. You have to put the graphics on the lowest values, every single setting on low and than maybe you can game for a bit with it, eventually the processor will catch up and becomes hot.. ( Dont try to game on high settings ) I had an external cooler for my S22 Ultra that I could clip on the back while running games, this kept the area on the back where the processor is icecold.
All the things you tried
'Resetting the phone
Clearing the cache
Uninstall and reinstall the game
Updating everything from OS to the apps
Putting it on battery saving
Reducing the game graphics and FPS
And lots of other solutions on the internet'
are sadly not gonna change the fact that this processor is not suited for gaming.
Im in no way unsatisfied with the S22, it has a great camera and I had a blast with the phone, i really enjoyed it. Just the gaming aspect was a disapointment.
With the S23 series they used the latest Snapdragon processor and all these problems around gaming are solved. I game all the time with the S23 Ultra and there aren't any issues with lag or overheating. In fact 2 to 3 hours in my phone is not hot. Sometimes when you game on ultra high settings it gets a little warm but not hot. I also dont need an external cooler with the S23 Ultra. You could go to a store and test a game on a test S23 Ultra phone and find out for yourself that its very possible to do things on this device without it getting hot if you would want that. This is why I think your last comment about not wasting money in the future on S23 is very far away from how things actually are. You should do some research into processors, Snapdragon vs Exynos, than you find out that its a very good choice to get a S23. I hope this helped you.