Pgadmin 4 installation on ubuntu 22.04

Looking to install pgadmin4 to ubuntu 22.04.

I used the following:

curl | sudo apt-key add
Warning: apt-key is deprecated. Manage keyring files in trusted.gpg.d instead (see apt-key(8)).

I then found a tutorial That suggested using:

wget -0- | gpg--dearmor | sudo tee /usr/share/keyrings/<myrepository>-archive-keyring.gpg

I'm just not quite sure how to use the command (or if its even what will address the issue).

Postgresql is installed.

Note: apologies in advance - I'm brand new to linux and command line so I'm not super familiar with the fundamentals yet.

Know someone who can answer? Share a link to this question via email, Twitter, or Facebook.