I am having the exact same issue. FB and Snapchat seem to work but Google, email and many, many other apps (Carb Manager, Rummikub examples) open for a brief moment and then immediately close. I have tried turning Wifi on and off, powering device off and then on. Looked in settings to see if something happened that I wasn't aware of (my granddaughter's sometimes push random buttons and then I have to look for fix), but NOTHING. The Verizon "chat" feature was a waste (several times) and well, at least I now know I am not alone (misery does love company)! With this many folks having the same random issue, randomly pop up early Monday evening...it must be Verizon!
After having the same exact problems I had found that it is indeed a Google issue.
The link above describes it more.
My Samsung Galaxy S7 Edge is now working perfectly after updating Android Apps on the Google Play Store App.
Update Android apps automatically
To automatically update apps on your Android device: