Turn on FxSound, no music is playing, standby state, CPU and GPU power consumption increase by 4 watts each

There was also a report of increased laptop battery drain by user @aaddaas.
Some advice from similar threads:

  1. Disable all unneeded devices including hidden ones in Windows Sound Settings;
  2. Change the Power settings to make the computer/display stay on/awake longer;
  3. Check if your computer supports modern standby power states (S0 low-power idle) by running this command:

powercfg /a