The start menu is definitely one of the most used things in my OS, personally, so I think it should be easily reachable. Opening the start menu and just typing the beginning of the name of a software, and hitting enter to launch it is pretty handy, imo. It also makes sense to me that it steals focus, especially in office programs, or visual studio, otherwise the shortcut wouldn’t make much sense in the first place. In that context, all it takes to return focus to the window you last used, is to press the same key again.

The only reason I understand why it’s disruptive is fullscreen games or other apps that take a while to unfocus, which is not really much of an issue anymore with modern hardware and borderless windowed “fullscreen” apps. I think a good solution would be to just disable that shortcut while a true fullscreen app is focused.

Maybe I have a different view on this because I barely ever accidentally press it in the first place.