Oh please, stop it everyone with this thrite trope of the fabled finance guys with their crazy spreadsheet that holds the whole company together. 99% of Excel use is NOT that!

What MS365 does best (for now) is being a one stop shop for user/permissions/device management and coming with outlook/exchange/Teams - nobody with purchasing power gives a shit if ppl get Excel or LibreCalc as spreadsheet, they get it because it comes with the rest.