sudo apt update
curl -sL https://deb.nodesource.com/setup_14.x | sudo bash -

cat /etc/apt/sources.list.d/nodesource.list
deb https://deb.nodesource.com/node_14.x focal main
deb-src https://deb.nodesource.com/node_14.x focal main

sudo apt -y install nodejs

node -v
v14.18.2