web-desktop-environment VS docker-webtop

I think you misunderstand the OP. They want an OS inside the browser, like a cloud desktop: https://github.com/shmuelhizmi/web-desktop-environment. It was a thing a few years back. LG WebOS is a native OS which has nothing to do with that except for sharing a name.

View on GitHub

Or, install https://github.com/linuxserver/docker-webtop on the remote server and then use a GUI library manager in that container, if you really need a GUI.

I've also run a Minecraft server on that mini pc and it ran just fine, but if you want to host more games there are other more powerful machines you could use. There are also a whole world of other services you could try. I've been enjoying Webtop lately, for example.

You could spin up something like Kasm Workspaces, Neko or Docker Webtop.

Install docker and docker-compose. You can search docker-compose HERE and then docker-compose pull and docker-compose up -d

After i had a look at Kasm Workspaces and found it a bit too heavy for my use-case, i was trying to setup a simple linuxserver/webtop container.

Someone on Discord recommended I spin up a Webtop Docker container but they weren't too sure if this would let me login with multiple users. These containers, to my understanding, run their own versions of Guacamole, so managing each of these instances could get complicated over time.

you could just use webtop (https://github.com/linuxserver/docker-webtop)