Originally Posted by husseinaltaaf
I am using Greenify on my Note 9 PIE and its working perfectly!
And of course its rooted.
I'm very glad that Greenify works on your device with Pie. I guess the question is if Greenify is really needed on Pie (and by theway Oreo already). By lots of things I've read - and especially from such a highly experienced member as @DB126
I personally doubt, but no own experiences as all of our devices are still on Nougat and will stay there.