I am sorry to read, that you got an overheating problem. What exactly does happen. How do you know that it is "overheating" What exact Model is it (this year?) and what specs do you have.
Did you install all of the actual drivers and all the updates (including available bios stuff), so we can be sure, that you are not missing any particular framework things which might influences the thermal and heating behavior in your unit.
Your Dell computer can overheat because of insufficient air flow due to dust or debris blocking the air vents, exhaust ports, or a clogged fan. An overheating computer can intermittently restart, shutdown, or experience performance issues. Eventually excessive heat can cause damage to the internal components.
If you notice the computer fan running constantly and making an abnormal or loud noise, this might indicate that the computer is not running as efficiently as possible, and/or clogged air vents. It is important to keep dust from accumulating in your computer and ensure adequate ventilation to help reduce heat.