clicking on 7zip - file format not supported but in install list

English Applications
1 
# Status             Package                        | Summary                                  | Installed (Available)     | 5

[Keep]               p7zip                          | 7-zip file compression program           | 16.02-14.7.1              |    1.0 MiB
[Do Not Install]     J7Z                            | Java-based P7Zip GUI for data compres... | (1.4.1-bp153.1.17)        |  386.0 KiB
[Do Not Install]     p7zip-doc                      | HTML manual for 7-zip                    | (16.02-14.7.1)            |  200.2 KiB
[Do Not Install]     p7zip-full                     | 7z and 7za archivers that handle more... | (16.02-14.7.1)            |    4.8 MiB

https://dukeworld.com/eduke32/synthesis/latest/

eduke32_win64_20211027-9723-a835847d6.7z

This is a new file, why isn’t this format supported already?

2

Why are you not using p7zip-full? Did you try it?