Laptop Overheating

I have a Lenovo LOQ laptop, processor Intel Core i7, installed RAM 24gb, Graphics NVIDIA RTX 5070, storage 4.57tb. For the last 2 weeks my laptop has started overheating to 100c every time I play sims4, this is a laptop that i bought in January 2026 and i am not sure what to do about it, i am worried the temperature is going to eventually ruin this laptop. It had been hot in the UK so i checked the thermal paste and renewed it on the CPU and GPU. I also wondered if the heat sink had a problem so i renewed the fans and the heat sink, that hasn’t helped, i am at a loss. I never had this problem before the last 2 weeks. I do have a lot of CC and mods but even with taking these out, i still have the problem. Can anyone help please. Thank you.