Matrix server is pretty complicated. You’ll need a reverse proxy, SSL certificates, and preferably a database like Postgresql. Minecraft would be a lot easier.
Either way, a lot of it would involve the command-line anyway, so I would second the SSH suggestion. It’s fairly easy to set up. When installing Ubuntu Server for example it asks you right away if you want to install one.
Matrix server is pretty complicated. You’ll need a reverse proxy, SSL certificates, and preferably a database like Postgresql. Minecraft would be a lot easier.
Either way, a lot of it would involve the command-line anyway, so I would second the SSH suggestion. It’s fairly easy to set up. When installing Ubuntu Server for example it asks you right away if you want to install one.