Caffeinate command? Question

I have been reading about overclocking and keeping my machine awake. I am using an early 2015 MacBook Pro Retina, and find that often the systems own constraints make updates fail etc. I came across the caffeinate command early on in Mojave as a way to keep the system running on full steam especially during updates where the machine might inadvertently go to sleep halfway through an update.

I know from previous threads that Intel Processors are locked from overclocking unless driven by the software itself to unlock this feature. I have 2 questions based on what I know and what I have seen on this MacBook.

1. Are there any elements of the caffeinate command that do anything more than keep the machine awake so that it does not go to sleep until you close the terminal. Are there any downsides?
2. Are there any other Mojave/Catalina options that allow you to force overclocking in the same way as the command itself seems to imply, my research in the forums have not come across anything?

Thank You.

B.