Except for Office, you won’t really miss Windows.
When you consider Linux has a 2% market share, its because Windows is easier to use.
If you hate Microsoft, there’s Apple and Linux.
It took me a bit to remember.. but, it seems the formulas from Excel work in LibreOffice Calc.. and I can save as Excel ;^)
Working on a new sheet that takes over 7 pages that refers back to the first page (TAB) (just like Excel) :D