I know one can click on the O on the top left corner or just hit the Alt key to get the menu bar but to me that is one step too many. Yes, some say it takes extra space but I'd rather save time than space. Is there any way of getting it back, even via a reliable, not system hungry, plugin? I don't use Brave, Chrome etc because of this problem and Opera not much either because of it--but I'd like to.

@joland googling opera pub presented pages of pub (a drinking venue) @sgunhouse the link you provided gave me the exact place I was the first time--or at least it looked the same but no "offline package'' was available and a search for the word "offline" on that page showed no such result. Oddly enough though, clicking on the Windows 10 thing again somehow seemed to have downloaded not the online one but the actual offline one this time around. @tullyn your page did provide such a link.
I thank you all sincerely.

Where do I download the full Opera installer? I hate the short version of installers that require one to go online to actually install something. I am not always in a position of going online (and when I do a full reinstall of windows can't really do so).