When I have to work on docx I generally can do it with LibreOffice and I'm quite happy with that. Sometimes I can not, I had for example this pesky thing which wouldn't let me edit parts of the document as it was locked, especially on tables. No amount of conversations across file formats fixes that for some reason.

That is when I have to open up the office365 webpage. What a fucking piece of garbage. Most things you mention do not even exist in there. You can write a document and add comments, managing styles is already a bit too much for the yearly fee they charge you.

I hope they make it possible again to install the office suite on Linux.

And in no way I'm saying I like LibreOffice better than word, they're both quite terrible; but at least one of them runs on my system.