Missing Power Manager, Debian RPI4C+

Hello,

Running Debian on RockPi 4C Plus but missing power manager package it seems.
It doesn’t show up in Settings. Is there any other way to turn off all energy savings settings?

uname -a
Linux rock-4c-plus 4.4.194-10-rk3399-rockchip-gf9d08dbd6762 #1 SMP Mon Oct 24 18:23:12 CST 2022 aarch64 GNU/Linux