@rojaviv A quick visit to chrome://settings/searchEngines reveals that the search engines stored by chrome do not match those stored by Vivaldi, so they must be doing something weird (i.e. storing it as an app setting rather than interfacing with chromium's settings).
I mention this as I was looking for a way you could quickly copy a single file over, but it doesn't seem that will be possible.
I guess this is the feature I want the most in Vivaldi. Currently, I'm often using Windows's Snip & Sketch to instantly highlight a part of the image, especially since it has a keyboard shortcut Windows + Shift + S.
I moved this topic to the Done category and closed it since most of it is implemented already. Feel free to create a new feature request for the remaining feature. 🙂
Thanks everyone for your input and remember to post only one feature per request. 😉