Nextcloud may be a bit overkill for your use case, but it does have a very good video chat function. It’s also pretty easy to deploy as a snap package or with the AIO docker image. A downside is that the other person has to have an account on your instance and log into it to join a call. However this is not necessarily difficult to arrange.
Like many GUIs it makes it so you don’t have to remember and type a bunch of commands to carry out basic tasks. I especially find it convenient for checking logs. But no unique functionality compared to CLI. So it’s a matter of preference.