I only know of Win 7 and Win 10, never touch 8, 8.1 nor 11. I still use win10 at work and the start menu is very odd. I like to use the win key to summon the menu and search, but the behavior is very inconsistant, sometimes it's fast, sometimes very slow, sometimes I can search, sometimes not, sometimes it gives me the file/app i am looking for, and sometimes it decides to go for bing results. I must admit, I actully never ever navigate the menu itself appart from turning off the laptop. It is a very slow and inefficient design element in my opinon.