@leocg I am also an Opera user, and I hate it. I installed Opera, imported everything but I dont want to use. I guess this is one of the things. It is frustrating.
At least, when you Ctrl+W again in empty screen, the window can close.

Do you have a data that shows how many percentage of people like this feature? I dont think people love it. If you close the window, you can open it with Win+1 or wherever you pinned Opera browser. But in order to close it, you have to manually click. If I was going to manually click I wouldnt press Ctrl+W

Hello,
In all other browsers, the behaviour is the same. When you Ctrl+W the last open tab, it will close the window. But in Opera, it may or may not close the window depending on whether there is another window or not. Okay, that's a decision, but why doesnt it close the window when I press Ctrl+W again? I have to manually close the tab, or I have to press Ctrl+Shift+W which is not a comfortable combination.

Please, either close the window when the last tab is closed, or at least when the last tab is closed and the window is the last window and I press Ctrl+W again it should close the window.

Currently the behaviour is uncertain, I should know whether the window is the last one or not. I press Ctrl+W, it closes, okay; then in another time I press Ctrl+W, it doesnt close because it was the last one. I dont want to check if it is the last window or not all the time. It is frustrating to have an uncertain behaviour.

There is a past post, which says solved but it is not https://forums.opera.com/topic/62630/solved-auto-close-the-browser-when-last-tab-is-closed