Well you would be wrong. I have LibreOffice 7.1.4.2 in front of me right now and it still can't correctly render stuff I had from 2014. The text boxes and stuff all end up in massively wrong positions, like they always have. (And they render fine in Word, like they always have.)
Similarly, first Excel spreadsheet I try to open in it gives this error: Warning loading {document}: The data could not be loaded completely because the maximum number of columns per sheet was exceeded.
I could waste my time with other examples but it would be that: wasting my time.
Don't get me wrong, I'm rooting for them. Maybe someday there will finally come a free office program that can function like MS Office did a decade ago. I'm looking forward to seeing it before I die. But in the meantime, there's just no way we can honestly tell people LibreOffice is as high-quality as MS Office, regardless of how much we want that to be the case. It's just a lie we keep telling ourselves.
> (in some aspects)
...you just made my point for me.