According to
https://en.wikipedia.org/wiki/PureOS
In my opinion, it's time to choose something else.
This is what the 0ad versions supported by Linux distributions look like.
https://repology.org/project/0ad/versions
I suggest stable Debian 13.1 Trixie:
https://cdimage.debian.org/cdimage/release/13.1.0/amd64/iso-dvd/
https://packages.debian.org/trixie-backports/0ad
Regards.
Yes, but they don't focus on helping the few projects like these.
There aren't many successful cross-platform open-source games.
https://github.com/vi3itor/GameplayFootball
This project has been abandoned several times. I don't even know who's developing it.