Install Updates Error log - Chrome NO_PUBKEY

[Aithne]

Get:2 https://dl.google.com/linux/chrome/deb stable InRelease [1,825 B]
Hit:3 http://us.archive.ubuntu.com/ubuntu jammy InRelease
Hit:4 http://security.ubuntu.com/ubuntu jammy-security InRelease
Hit:5 http://us.archive.ubuntu.com/ubuntu jammy-updates InRelease
Err:2 https://dl.google.com/linux/chrome/deb stable InRelease
  The following signatures couldn't be verified because the public key is not available: NO_PUBKEY E88979FB9B30ACF2
Hit:6 http://us.archive.ubuntu.com/ubuntu jammy-backports InRelease
Hit:7 http://archive.canonical.com/ubuntu jammy InRelease
Reading package lists...
W: GPG error: https://dl.google.com/linux/chrome/deb stable InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY E88979FB9B30ACF2
E: The repository 'https://dl.google.com/linux/chrome/deb stable InRelease' is not signed.

[stevef]

This indicates that there is a problem authenticating the signing key for Chrome may be missing from your system.
This is stopping your update/upgrade from working.

To help diagnose the problem, please can you open a terminal - by pressing Ctrl Alt and T together.
In the terminal window type or paste in this command followed by Enter.

Code:

apt-key list

This will show what keys apt can find to check software is signed.

Copy the output and paste it back here.