Docker does not have a release file?

When I run sudo apt update I get this error E: The repository 'https://download.docker.com/linux/ubuntu \ Release' does not have a Release file. N: Updating from such a repository can't be done securely, and is therefore disabled by default. N: See apt-secure(8) manpage for repository creation and user configuration details. I am a complete Linux noob, so it would be appreciated for the answers be simplified. There are a few things I have tried to fix the problem with, using ppa purge doesn't work because when I run it,

E: The repository 'https://download.docker.com/linux/ubuntu  \ Release' does not have a Release file.
Warning:  apt-get update failed for some reason

for the most part, I get the same error. Even when I get this to work with a different type of command, as said before I am a Linux noob, and I cannot find the name of the ppa. So I run my command like this

sudo add-apt-repository --remove ppa:docker

As said before I need help understanding my answers, and I still need more help learning what the post means. SYSTEM: OS: PoP!OS, Based on Ubuntu 20.04 LTS. Here is a steam benchmark for more advanced info about my PC