"WYSIWYG text editors, spreadsheets, desktops, and web browsers" are all more than serviceable in Linux. I seldom find Firefox less useful on Linux than any other platform. For the rest the problem is that they are moving targets whose spec is dictated by others.
You want Excel to act like Excel and you also want Libre Office Calc to act like Excel, but Libre Office can never really be Excel, so it's Excel 97.
You want Excel to act like Excel and you also want Libre Office Calc to act like Excel, but Libre Office can never really be Excel, so it's Excel 97.