Mobile version optimization issue

I'm playing on a Realme with 8 ram and SD 870 and the phone reaches 45°C even with low settings. I'm planning to buy a new phone since the one I have is already 4 years old, with SD 8 Gen 3 + 12 RAM however I'm not quite sure if it will be able to handle it and I don't want to ruin a new phone. I'm curious to ask how the game runs on everyone else's device and what specs do you have?