@ncatalin94 Hello and Welcome to the Vivaldi Community ๐ ๐
Can someone install this and let me know if I am crazy or not?
I tried it. First thing is for extension-specific hotkeys to work in Vivaldi they need to be set Global in chrome://extensions/shortcuts. Don't know why, probably because Vivaldi has its own hotkey handling (and far far superior to any other browser).
I doubt any of the other hotkeys will work as well. Vivaldi is not Chrome (nor Brave) and some extensions just don't work well.
Vivaldi has its own system built-in called Quick Commands that seems to do most of what that extension does already, I suggest you check it out: https://help.vivaldi.com/desktop/shortcuts/quick-commands/
Have you had a look at Vivaldi's many custom hotkeys?
https://help.vivaldi.com/desktop/shortcuts/keyboard-shortcuts/
You can automate a lot of operations using Command Chains, even run custom JS:
https://help.vivaldi.com/desktop/shortcuts/command-chains/
Also, is there a way to repor bugs to the developers with a single click like in brave?
The bug report form is here:
https://vivaldi.com/bugreport/
It is recommended to post here first to get others to reproduce and confirm the issues before reporting, as badly written and not reproducible reports get closed.
For crashes please read:
Help us reproduce your issue
How to report a bug for Vivaldi
How to report crashes on Windows, macOS, Linux
carefully and report the bug to Vivaldi bugtracker ๐