Wel... Just to add on what's been shared here,
. To preview backed up data on HTC 10, just launch the Google Drive App.. If u don't have it, download it from the store.. Then launch it.
But don't forget to open up a back up account, coz without it.. U won't be able to see ur data. So... A back up account is a must have!
After launching the Google Drive App, (oh.. I found an offer of 100GB free storage for being an HTC 10 user and summing up with the 15GB that the app offers, I have a total of 115 GB cloud storage)
Then, from the app, on the top left corner.. There are three holizintol lines with all options..
-preview data
-permission on when to back up, Wi-Fi or cellular data
-last back up
-keep or delete backed up data
-auto back up option for Google photos.
The main point is to create a back up account, with it.. Am sure even if ur not sure on how to monitor ur data, at least it's already giving us a chance of make auto update as a choice, so.. In case of switching, or loss of a phone.. Entering ur email/backup account is an express high way to the home u. ve known all ur life..
But still monitoring ur work ain't a crime, the problem is not knowing how to, so.. Here we are.
Good luck.