You’re entitled to your opinion but I would say Excel is one of the best, if not THE best spreadsheet application ever produced. It’s one thing that Microsoft actually got and one of the only reasons I still pay for an Office 365 subscription.
If you’re just creating simple spreadsheets, there’s plenty of other options out there.
But, if you’re a power user doing a lot of complex data analytics, Excel is still the king.
My main gripe is that I still have to use VBA for a lot of stuff behind the scenes. Yuck.