x2go
x2go is an "alternative" to using VNC for a remote connection. It uses X11 forwarding over ssh to provide a desktop environment
Reason for using: I have a Pi 4 and I didn't buy a micro hdmi cable. You can use VNC however you are limited to a 800x600 window.
Installation
Install with sudo apt install x2goserver
x2go cant connect to the native Raspbian Desktop so you will need to install another with sudo tasksel
I chose Xfce because it is light weight.
Install the x2go client from their website
Now I have a full-screen client