3a:00.0 Network controller [0280]: Intel Corporation Device [8086:2723] (rev 1a)

Wireless doesn't work

Just upgrade to the latest Linux Kernel, >5.1, and use the latest firmware for the Wireless adapter: https://www.intel.com/content/www/us/en/support/articles/000005511/network-and-i-o/wireless-networking.html

• Locating Drivers for Intel AX200 Wireless on 5.1 Kernel
• Linux Kernel 5.1 Released! How to Install it in Ubuntu

Tocuhpad doesn't work after suspend

Create new file /lib/systemd/system-sleep/fixtouchpad root:root 755 with this content:

#!/bin/sh

case $1/$2 in
  pre/*)
    echo "Going to $2..."
    # Place your pre suspend commands here, or `exit 0` if no pre suspend action required
    modprobe -r i2c_hid
    ;;
  post/*)
    echo "Waking up from $2..."
    # Place your post suspend (resume) commands here, or `exit 0` if no post suspend action required
    sleep 2
    modprobe i2c_hid
    ;;
esac

• Touchpad not working after suspending laptop
• Zbook G5: Touchpad doesn't work after suspend/resume

Hardening Ubuntu default UMASK

add this line to ~/.profile

umask 027