It's really not that complicated
The article title is more confusing than Google's changes IMO!
Firstly, Google Drive isn't going anywhere - it's still available and will continue to be available.
What is being deprecated is old Google Drive **client** and it's being replaced by a new app which combines the functionality of the old drive client and photos upload client and adds additional functionality which allows you to backup any folder on your PC to Google Drive (it appears in drive on the web under a new Computers tab).
The old "sync folders to a google drive folder" functionality is absolutely still there and works exactly as it always has
If you're not a G Suite user that's it - same functionality with some additional functionality added on top
If you're a G Suite user then it's a bit more complicated (but not massively so) - you can either use the new backup and sync client and carry on as you always have or you can use the Drive File Stream client which adds support for Team Drives (the only way you can sync them to your computer is to use the Drive File Stream client) (or, if you really want to, you can use both together)
Drive File Stream shows your entire drive and any team drives under a new disk (G: by default on windows) and will download files on demand with caching for frequently used files.
In addition, you can make selected files or folders available offline in which case they're synced to your machine. This is pretty much what OneDrive did in Windows 8 before MS decided it was too useful and canned the functionality!