Thanks to XDA’s paphonb user, the ported Pixel 2 Launcher bring Google Feed, circle icon support on Nexus device, alongside all new Pixel 2 Launcher features like bottom search box, At A Glance widget, etc. The ported launcher does not require root on the device to work.

The developer paphonb has updated the launcher APK with various fixes and the latest version (current version 1.5) seems to be pretty stable. To get all the features, your device should be runs on Android 7.0 Nougat or Android 8.0 Oreo, but it should also works on Android Lollipop and up with limited features. Features of ported Pixel 2 Launcher: Note that, to install the ported Pixel 2 launcher (Rootless launcher), you should uninstall the previous Pixel Launcher from your phone, if installed. Ported Pixel 2 Launcher APK can be downloaded from development page [HERE] and sideload on your device. After installation, set it as your default launcher. (Source – XDA)