

If the 3D of Gen 5 qualifies: https://smilingzero.github.io/BlazeBlack2ReduxWiki/
Don’t quote me on this, but I believe it should also be compatible with https://pkmnclassic.net/ which includes online WFC features such as:
### What works
GTS
Battle Videos
Dressup (PtHGSS)
Box uploads (PtHGSS)
Musical photos (BW1/2)
Wi-Fi Battle Tower and Subway
Random Match ups (Currently requires AR Code: https://github.com/mm201/pkmn-classic-framework/issues/116)
### What doesn't
Trainer Rankings (PtHGSS)
~~Wi-Fi Plaza (PtHGSS)~~ Seems to work now
Game Sync
Rating Battles / Competitions
Really? Netplan alone disqualifies Ubuntu as a “friendly stable starter distro”, and I can guarantee you that your guide will somehow become outdated with a single new Ubuntu release, or some poor soul who accidentally selected an LTS release.
Docker doesn’t matter as much, but there’s a reason beyond just FOSS licensing why podman exists.
Would highly recommend Debian instead.
I started on Ubuntu similar to this many years ago and both the server and desktop experience was not fun at all.