NCP 1.50.3: Adding a GUI possible to the raspi OS after initial installation?

I wonder if there is a way to later add a GUI to the Raspian OS on a NCP installation.
I do know that this probably is nothing advanced users would want, but being a noob I would feel a little better if I had the option to use an UI in some cases. Command line is not really where I am at home.

Has anyone ever done that without any issue? If yes, how?

Simply use the WebUI of NextcloudPi