If a package (source or binary) is new to the PureOS archive, it needs to be acknowledged by an archive administrator who will add an "override" for the package's section and priority to the archive database. Once this is complete the package is accepted into the package archive.
Your package might be stuck there for a few days and not show up in the landing suite.
If you feel the package is being stuck in NEW for too long, notify an archive admin (currently @mak ).
Once a package is NEW processed it takes about 6h for it to enter the archive.
should that read 'If a package (source or binary) is new to a suite of the PureOS archive' since we need to new-process packages NEW in amber-phone that are in byzantium or is that a speciality of amber-phone?
That depends on how the suite is set up and where it gets its overrides from - the phone suites do not share overrides with the main amber suite, so everything goes through NEW once (but that also means the changing overrides for the phone suite is easier and there is less room for error and it impacting one of the main suites).