I wish I new how to easily install an AUR package manager when I first started.

Step 1: go to the AUR and choose a package manager. I recommend paru, but there are plenty of others.

Step 2: install git using pacman

sudo pacman -S git 

Step 3: copy the git clone URL for paru and pull it

git clone https://aur.archlinux.org/paru.git

Step 4: CD into the new directory

cd paru

Step 5: install paru

makepkg -si

Now when you find a package from the AUR you want, you can easily install it.

paru -S [package]

Also, when you update your system, you only need to run paru -Syu. You don’t need to run both pacman -Syu and paru -Syu.