Libreoffice (and the hot garbage that is libreCalc) is not at all equivalent to the Microsoft alternatives.
Maybe for the HS student who don't know any better.
But it's a mess for business.
My company did a major switch to Linux, then THOUSANDS of tickets complaining about broken spreadsheets and word docs forced a lot of employees to secretly use Google Docs/Google Sheets. We had a company mandate/all-hands-on-deck to find a alternative. And now we have a hodgepodge of other BS, with tribes wanting us to get a Microsoft Office subscriptions, others pushing for forking another open-source suite, web devs building our own spreadsheet program, and accountants still secretly using Google Suite.