Can I restore apps and settings from Google backup later?
I found an app that totally saved my life on this matter!
The app is called Activity Launcher and from this you can open Android Setup app (the one with Restore icon) and click on the activity CloudRestoreFlowActivity. The restore screen will show up and you can select a backup file you previously uploaded to Drive.

FYI, I use Mi A2 Lite with Android 9.0 Pie.