That is your default Linux configuration. The distros tend to err on the side of functional systems but higher power use.
Start tweaking things like the stuff found in powertop. If your hardware is pretty standard Intel stuff you can get very low. For example, my Dell laptop will idle at 0.5 W with the display off, the SSD, USB, WiFi and PCIe bus all at idle.
That's about 5 days of power on battery. About equal to what any version of Windows can do with Modern Standby settings.
5 years ago I would have done that. And I did. A number of times. it never even approaches the runtime of Windows. Nowadays, I don't waste my time. I pay Microsoft for windows license, and do all my work in a Linux VM. Believe it or don't, this produces longer battery lives.
Start tweaking things like the stuff found in powertop. If your hardware is pretty standard Intel stuff you can get very low. For example, my Dell laptop will idle at 0.5 W with the display off, the SSD, USB, WiFi and PCIe bus all at idle.
That's about 5 days of power on battery. About equal to what any version of Windows can do with Modern Standby settings.