When you need a spreadsheet...
Then you need a spreadsheet and nothing else will substitute. That's why Visicalc was such an instant killer app and why people bought an Apple to run it.
Excel, as crappy as it is, is about it for options, unless you're lucky enough to be able to use Libreoffice. Visicalc, SuperCalc, Lotus 1-2-3 etc have all fallen by the wayside
Google Sheets sucks even worse than Excel, which is pretty impressive.
I remember telling someone "ok you put a number in this cell, and a number in this cell, and this formula in this cell and IT AUTOMATICALLY COMPUTES IT" 40 years ago and watching his head explode.
OTOH, I recently showed someone a paper spreadsheet and his head exploded that people did all that manual labor.