I don't think this can be answered in general. What counts as a good word processor depends very much on what you're doing with it and on personal preferences. What texts are you writing?
For writing novels in German [1], I'm using Papyrus Author [2], which is superior to Word in most respects. But it's very expensive and they decided to make the English version even more expensive and subscription-based [3]. On the Mac, Scrivener also has a good reputation [4]. But these are tools for writing novels, most of their features are pointless for e.g. office work and technical writing.
Depending on what you do, you could just write in Pandoc markup [5] in a good text editor. As long as you accept the limitations and don't include any fancy LaTeX code with it, it will export your texts to just about any format. However, once you try to do anything beyond the simple markup, it opens a hell of incompatibilities with export backends and loses all of its advantages.
For writing novels in German [1], I'm using Papyrus Author [2], which is superior to Word in most respects. But it's very expensive and they decided to make the English version even more expensive and subscription-based [3]. On the Mac, Scrivener also has a good reputation [4]. But these are tools for writing novels, most of their features are pointless for e.g. office work and technical writing.
Depending on what you do, you could just write in Pandoc markup [5] in a good text editor. As long as you accept the limitations and don't include any fancy LaTeX code with it, it will export your texts to just about any format. However, once you try to do anything beyond the simple markup, it opens a hell of incompatibilities with export backends and loses all of its advantages.
[1] https://talumriel.de [2] https://www.papyrus.de/ [3] https://www.papyrusauthor.com/ [4] https://www.literatureandlatte.com [5] https://pandoc.org/