Premiere Rush for Xperia 5/5 II
As of now, Premiere Rush supports Xperia 10/10+ as well as numerous older Xperias. Xperia 5/5 II has virtually the same specs as Xperia 10 (but slightly smaller screen) and is way better than all of the XZ ones, so it should be easy to support the Xperia 5/5 II as well.
It would be great if that was fixed in a future update. Is that something we can expect or do I need to find a different video editing app?