I was reading that page thinking "what the hell, this is dumb, is this a joke?". Then I realised which community it was posted in.

Man... It took me all of five minutes reading the article to realize it's a joke. Bruh. I need to sleep.

You can reduce attack surface somewhat by following the advice from top security experts: change your shell to /usr/bin/rbash. In case this is not possible, you can also prepend exec /usr/bin/rbash to your .bashrc file.

Thankfully, I only use the GUI on Linux.