The article waffles on forever and gives some generic advice.

Meanwhile, Bitwarden themselves state that end users were almost never affected: https://community.bitwarden.com/t/bitwarden-statement-on-che...

You had to install the CLI through NPM at a very short time frame for it to be affected. If you did get infected, you have to assume all secrets on your computer were accessed and that any executable file you had write access to may be backdoored.