I find it even more convoluted in Excel. But it is subjective. In any case, I agree it is convoluted. I think (no proof) the old style Excel menus were used as basis for libreoffice.

But, just like with any software, search it once and you learn how. Takes a while but it’s great when you get the hang and get everything set up for your use case.

Try LibreOffice calc.

I think Word is harder to replace because formatting issues assuming documents are in word format

They could have gone with a Ukrainian designer, just makes no sense