Gear VR SM-R325 works fine with note 9 without adapter. details in comments : r/GearVR
Secret To Using Gear VR With A Note 9 - YouTube
Own a Note 9? How to get a free Gear VR adapter from Samsung
2018 Gear VR adapter for Note 9 aka Samsung Device Holder GH69-32908A - Android Forums at AndroidCentral.com
Samsung's Galaxy Note 10 isn't compatible with its VR headset | Engadget
Galaxy Note 9 will need a new Gear VR headset | Pocketnow
Samsung Offers Free Gear VR USB-C Adapters to Note 9 Users – Road to VR
I requested a note 9 adapter for my gearvr more than a month ago. They have been sending me 1 every week since. Will I get another one next week? : r/GalaxyNote9