Excel I'd argue is the primary reason for most in the business world.

What LibreOffice misses, and sheets to a lesser extent, is that Excel isn't just a spreadsheet app. It's a general-purpose programming environment for non-devs (although, at a certain point, you could argue they are effectively programming even if they don't see it that way).

Yeah, there are better solutions. At a certain level of complexity, you probably shouldn't be using Excel and should switch to Python+some SQL database, but there's something to be said about the visual environment Excel provides.

Excel is Microsoft's killer app