.
Unfortunately, I don’t think either is particularly great. LibreOffice looks horrendous, performs at or below average, and does not have fabulous compatibility with Microsoft Office formats. On the other hand, ONLYOFFICE has better compatibility but feels cheap and pushes web services.
If this is for personal use, I would go with LibreOffice. If you need to share documents with others using a common format, go with ONLYOFFICE.
LibreOffice literally looks exactly like MS Office in my computer, what are you talking about? It does take a little bit of configuration, but nothing you can’t find with a quick search
They are probably using the default installed theme, which doesn’t have scalable icons so everything is horribly pixelated. Not sure why it’s still the default, but as you said it’s pretty easy to change.
