Is there a user guide?
Is there a user/quick start guide for the browser. I keep reading about all these features but I have no idea how to use them?
Sorry to let you unanswered.
Here you have some useful Guides links:
Forums Community Official Tutorials Official Help Forum Categories Modding Vivaldi Vivaldi Features Vivaldi Help Forum Markdown Search Engines Vivaldi Tutorials Issues Feature Requests ¿? Web Panels | Menus Vivaldi How To Bug Reports
"Off Topic Tip"
Follow the Signature's Backup | Reset link.
Take the opportunity to start a Backup plan and even create a Template Profile.
Windows 7 (x64)
Vivaldi Backup | Reset