Google Drive on mobile is getting rid of the bottom sheet ... to the FAB. In the current version of Drive on Android, tapping on the FAB with the + icon will bring up a sheet with six options ...

For some, the Google Drive scanner is how they digitize documents, and the Android app is testing a change that makes it more prominent.

Google Chrome on Android may get a UI revamp with a Floating Action Button (FAB) for new tabs ... browsers that we don't realize how useful a bottom bar would be Perhaps one of the more intriguing ...

and Google Keep for Android is following suit. Update 3/27: Google Keep is now testing a more conventional alternative to the floating bottom bar. Tapping the FAB presents the same three options.