Installing Snap on Linux Mint
Ubuntu 16.04 ship with Snap installed by default. This post helps you to setup Snap in Linux mint. Ubuntu 16.04 ships with Snap installed by default.

Steps to Install Snap on Linux Mint.
First, Update the repository
sudo apt-get update

Now, Install Snap in Linux Mint
sudo apt-get install snapd

Checking Snap Version
snap --version
It'll show below output. (Version Numbers may vary)
snap 2.51.1
snapd 2.51.1
series 16
ubuntu 20.04
kernel 5.8.0-59-generic