Install apps and packages using snap

Problem:

You need install or remove applications or packages using snap.

Solution:

You can use the Terminal and the snap command.

Step by step:

List the snap packages installed:
```
snap list
```
Additionally you can view all the disk blocks using by the apps or packages:
```
lsblk
```
Install a package:
```
sudo snap install packagename
```
Remove a package: remove the package but the space in hard disk will not be erased.
```
sudo snap remove packagename
```

If additionally you wanto to remove the cache:

sudo snap remove packagename

In this case, you completely remove a snap package, including all of its revision loop drives. Only by doing so, will the hard drive space be made available again.

Source:

https://askubuntu.com/a/1431864/822132
https://snapcraft.io/docs
https://snapcraft.io/docs/get-started
https://snapcraft.io/docs/installing-snap-on-ubuntu