Mac running hot

See this document about the operating temperature of Mac notebooks 'Keep your Mac notebook within acceptable operating temperatures' - Keep your Mac laptop within acceptable operating temperatures - Apple Support

Reset the SMC of your Mac - Apple Support

By far the easiest way to cause poor performance, instability, overheating and crashing is to install ANY third-party speeder-uppers, Cleaners, Optimizers, or Virus scanners. or a VPN that you installed yourself.

The idea that a third party, with no special knowledge of the inner workings of MacOS, can somehow find a simple way to protect your computer — that is not already being done by MacOS itself — suggests that the MacOS developers are somehow "holding out on you". That is absurd.

You should remove any and all (other than Apple built-in) virus scanners, speeder uppers, optimizers, cleaners, App deleters or VPN packages you installed yourself, or anything of that ilk.

Third-party file Sync-ers such as DropBox, BackBlaze, OneDrive, or GoogleDrive can ruin performance, but are not inherently dangerous.

Effective defenses against malware and ot… - Apple Community

What sub-model of Macbook Pro including the screen size? Blocked air intakes are a common factor in overheating and, depending on sub-model the intakes are different. In some models, using a keyboard cover/protector can block cooling air.

Sub-model is quickly available by doing "About this Mac..." from your Apple menu:

Hot air has to escape as well, and that happens through the hinge area. That must remain unobstructed.

Macbook Pros have been in continuous production since 2006 in several families. We can give much more specific advice if we know which one you have.

Maybe there could be some sort of malware or spyware on your device, I suggest you run a full malware scan