Wow, #SoftMakerOffice is really pleasant to work in, if you don't hate MS Office. I've used many of the major Linux-compatible office suites (LibreOffice, OpenOffice) and am impressed enough with SoftMaker that I upgraded from #FreeOffice to the paid version.
If you're used to MS Office, it's really easy to find your way around.
It isn't FOSS, but the fact that it has excellent Linux support makes it worthwhile for me.
https://www.softmaker.com/en/discover-softmaker-office-comparison