The Google Drive app for PC and Mac is being shut down in March

Google now has two fairly new software tools for backing up your data and/or accessing files in the cloud. There’s Backup and Sync, the all-encompassing consumer app that replaces both the standalone Google Drive and Google Photos Uploader apps. It offers essentially the same functionality as Drive and works much the same way.

https://www.theverge.com/2017/9/7/16267624/google-drive-desktop-app-shutdown