https://wccftech.com/download-the-google-pixel-launcher-apk-from-the-google-pixel-3-for-any-android-device/

We had a rough idea of what the Pixel Launcher would look like in the fifth iteration of the Android Pie developer preview. The changes are mostly cosmetic don’t affect functionality in any noticeable way. Most of the changes are minute enough to slip by the untrained eye.

The Assistant icon has also been added to the app drawer’s G pill. Adaptive icons are now forced on all icons, so a completely uniform look is now possible even with older and no longer updated apps.  The spacing in the app launcher has grown ever so slightly. We’re not sure why Google felt the need to do this, but things are now slightly further apart. There have been some tweaks to the app switcher as well.