9 hasn't come for Nokia 7 plus. Are you talking about developer preview? Even being Android one device, if Nokia is not able to roll software update before oneplus which rolled pie today, then Nokia's team has a lot of work to do. They are not being quick as they should be.
I absolutely have no idea what Nokia dev team is doing.oneplus with its custom UI rolled out android pie today and it's frustrating to see that Nokia which has a clean stock UI couldn't do that.not that they're adding any additional features nor improving/optimising the UI for their devices.
There's a lot to do for Nokia dev.devives with best software go a long way.i recommend Nokia heed this