@nikolamar In fact, the button in vivaldi://history does not clear the history. It just opens the Clear Browsing Data dialogue. This is the only relevant button that I see: Depending on your chosen settings, it may or may not clear your browsing history, and the range is also variable from the Past Hour to All Time. I voted for the feature request, but the button is also needed in the History Tab.

@zook They only shortcut you really need to remember is "Ctrl + F1" this opens the keyboard-cheat-sheet which shows you all shortcuts and includes a search function

Also key DEL could work.

@shickmo This can be done with the Clear Private Data shortcut (Ctrl+Shift+Delete by default) to clear your browsing history. It can, as you probably already know, be done from the context menu in the Window Panel. A dedicated shortcut for Clear Closed Tabs might be preferable to clearing your entire browsing history. One can also browse in a Private Window.