Copy pasting strange commands people will not memorise does not solve it! To keep non IT people on Linux, they need to find out how their desktop GUI works, so they are in control and happy to stay. The aim is not to use the minimum possible time writing the tips. Thrusting an unfamiliar environment on people is sure to scare them away, and is bad usability.
In KDE Plasma, if you right click on the launch menu button, there is an option Show Alternatives. Here, you can immediately select and use one of the installed alternative start menus. On top of that, you can install further launcher menus, which will then appear in the Show Alternatives list. I installed Simple Menu (from Eike Hein) that has categories, favourites and search. And let’s you move the icons around. But its that easy to try out different launchers. I hope you find a good one.