I feel like most news about Microsoft nowadays can be TL;DR as "this would be hilarious if it wasn't so sad." Including this one - it sounds like Microsoft is trying its hardest to raise the walls of its own walled garden, and failing hard at it.
I don't get folks who complain about libre office at this point. I feel its better but just the microsoft shenanigans with implementation of doc types that messes things up. I don't care. Save as xls and its up to the office person to see it right. If they complain I say it shows fine on mine and send them the pdf formatted correctly.
I just copied and pasted the github thing to unlock pro and office suite, seems easy enough, idk why I never did that throughout college, just never needed msoffice past the year I needed excel and I had it free then, only grabbed it now just to have it