I'd recommend just installing the "tlp" package, it includes most of what PowerTOP does and is "install and forget". Just an anecdote: I'm using Linux on a pro

I'd recommend just installing the "tlp" package, it includes most of what PowerTOP does and is "install and forget". Just an anecdote: I'm using Linux on a professional laptop, the same most of my colleagues use with Windows 10 (Latitude 7490). My battery life is significantly higher, high enough that I never care really, and the laptop is quieter: hearing the fan is the exception, not the norm. All this with Debian and the TLP package installed. The TLP configuration is just tweaked to aggressively idle the SSD (no spin down / spin up issue anymore) but that's it. I did this a long time ago when I moved from HDD to SSD, and just carry this over. A good deal of the difference may come from the antivirus on Windows, but TBC.