When I update FlatPak, it says it is already the newest version (1.10.8-0+deb11u3). So, either PureOS's FlatPak repository is out of date (doubtful, since their are constantly new updates to the FlatPak download list, and I get updates all the time), or the problem is in the 0 A.D. FlatPak itself.

The video was nice to watch. But this one is less nice to watch: With this one can capture way faster buildings because the units don't need to surround the building but can just capture in a cluster. Normal behavior without formation: cap_no_formation.mp4   With no override setting + formation capture: cap_no_override.mp4   This is especially annoying if you carefully block the building and only have a small part of it exposed. Or 2 players are in one base and can capture within some seconds a cc.

for 23/23b you need one of these  

Oh, cool! Thank you very much!

@AlexHerbert those are the cav you get after Marian reform (Roman upgrade in fort). Once researched, this tech change almost all units of the Romans; It's mostly a tech to make infantry stronger, for cav, stats aren't affected but icon still are. It's new from a27.