Process

Basically this... 

1. Downloaded 20.04.1 'cause I wanted to start with 5.4:
• http://old-releases.ubuntu.com/releases/20.04.1/ubuntu-20.04.1-desktop-amd64.iso
  
2. Installed offline
3. Ran:
1. sudo apt update
2. sudo apt install --install-recommends linux-generic
3. sudo apt remove --purge linux-generic-hwe-20.04 linux-headers-generic-hwe-20.04 linux-image-generic-hwe-20.04