This isn’t an issue anymore with flatpacks and snaps. I’ve been using Pop_OS for years now and I’ve never had to compile anything. If the deb isn’t available, or is the wrong version, there is a flatpack of the latest version. These aren’t tied to system package versions so you don’t run into dependency hell. It’s all managed through the pop shop so you never have to use the command line to install software at all.
Your research obviously does not include installing pop_os. The settings are in what you would call on Windows the “system tray”. The menu in the corner. You have some quick settings there, which includes the power profile. Then you can open the full settings app which has everything. Just go look for yourself.