I'd say a key element for me was that it is multi-OS (even installs on Google supported ChromeOS Linux Developer Mode), does not require any store account, does not require crazy powerful external GPUs and still supports LAN only mode.
This meant I could setup a LAN party by dusting off a collection of semi-retired Windows, MacOS and Chrome machines.
This meant I could setup a LAN party by dusting off a collection of semi-retired Windows, MacOS and Chrome machines.