Unfortunately most of these comments only illustrate that many don't feel adequate unless they demonstrate themselves superior to another human being.
The list isn't bad, although it's likely many will have already come bundled with the distro we've downloaded and used, or have equivalents depending on the DE of choice. Good point about antivirus, even though we don't need it. Everyone who's been using Linux for a little while will have developed their own preferences for doing different things, but lists like this are useful for making one review the tools they use and maybe trying some new ones.
Nice that many of these are graphical front ends to command line tools too. I'd never want the command line to be lost, but equally I'd not want to use it in normal day to day operation; your preference may be different and that's fine too. I suspect many who use Linux these days do so because they wanted freedom from feeling like they were being told just how things were going to be, rather than for technical reasons or wishing to escape the evil GUI.