I’m happily using (after all this time!) the Acer Nitro 5 [AN5] with Ubuntu 20.04 and the power saving script [PSS]. Unfortunately, when using the lowest power mode, the Ethernet interface won’t get an IP any more.
The Ethernet interface wakes up with a simple command:
sudo ip link set enp7s0 upResources
[AN5] Ubuntu on the Acer Nitro 5
https://blog.georgovassilis.com/2020/03/17/ubuntu-on-the-acer-nitro-5/
[PSS] Linux script collection
https://github.com/ggeorgovassilis/linuxscripts
George's Techblog 